A forest is a large area dominated by trees.  Hundreds of more precise definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing and ecological function.    According to the widely used   Food and Agriculture Organization definition, forests covered four billion hectares (15 million square miles) or approximately 30 percent of the world's land area in 2006. 
Forests are the dominant terrestrial ecosystem of Earth, and are distributed across the globe.  Forests account for 75% of the gross primary productivity of the Earth's biosphere, and contain 80% of the Earth's plant biomass. 
Forests at different latitudes and elevations form distinctly different ecozones: boreal forests near the poles, tropical forests near the equator and temperate forests at mid-latitudes. Higher elevation areas tend to support forests similar to those at higher latitudes, and amount of precipitation also affects forest composition.
Human society and forests influence each other in both positive and negative ways.  Forests provide ecosystem services to humans and serve as tourist attractions. Forests can also affect people's health. Human activities, including harvesting forest resources, can negatively affect forest ecosystems.
Although forest is a term of common parlance, there is no universally recognised precise definition, with more than 800 definitions of forest used around the world.  Although a forest is usually defined by the presence of trees, under many definitions an area completely lacking trees may still be considered a forest if it grew trees in the past, will grow trees in the future,  or was legally designated as a forest regardless of vegetation type.  
There are three broad categories of forest definitions in use: administrative, land use, and land cover.  Administrative definitions are based primarily upon the legal designations of land, and commonly bear little relationship to the vegetation growing on the land: land that is legally designated as a forest is defined as a forest even if no trees are growing on it.  Land use definitions are based upon the primary purpose that the land serves. For example, a forest may be defined as any land that is used primarily for production of timber. Under such a land use definition, cleared roads or infrastructure within an area used for forestry, or areas within the region that have been cleared by harvesting, disease or fire are still considered forests even if they contain no trees. Land cover definitions define forests based upon the type and density of vegetation growing on the land. Such definitions typically define a forest as an area growing trees above some threshold. These thresholds are typically the number of trees per area (density), the area of ground under the tree canopy (canopy cover) or the section of land that is occupied by the cross-section of tree trunks (basal area).  Under such land cover definitions, and area of land only be defined as forest if it is growing trees. Areas that fail to meet the land cover definition may be still included under while immature trees are establishing if they are expected to meet the definition at maturity. 
Under land use definitions, there is considerable variation on where the cutoff points are between a forest, woodland, and savanna. Under some definitions, forests require very high levels of tree canopy cover, from 60% to 100%,  excluding savannas and woodlands in which trees have a lower canopy cover. Other definitions consider savannas to be a type of forest, and include all areas with tree canopies over 10%. 
Some areas covered in trees are legally defined as agricultural areas, e.g. Norway spruce plantations in Austrian forest law when the trees are being grown as Christmas trees and below a certain height.
The word forest comes from Middle English, from Old French forest (also forès ) "forest, vast expanse covered by trees"; first introduced in English as the word for wild land set aside for hunting  without the necessity in definition for the existence of trees.  Possibly a borrowing (probably via Frankish or Old High German) of the Medieval Latin word foresta "open wood", foresta was first used by Carolingian scribes in the Capitularies of Charlemagne to refer specifically to the king's royal hunting grounds. The term was not endemic to Romance languages (e.g. native words for "forest" in the Romance languages evolved out of the Latin word silva "forest, wood" (English sylvan ); cf. Italian, Spanish, Portuguese selva ; Romanian silvă ; Old French selve ); and cognates in Romance languages, such as Italian foresta , Spanish and Portuguese floresta , etc. are all ultimately borrowings of the French word.
The exact origin of Medieval Latin foresta is obscure. Some authorities claim the word derives from the Late Latin phrase forestam silvam , meaning "the outer wood"; others claim the term is a latinisation of the Frankish word * forhist "forest, wooded country", assimilated to forestam silvam (a common practice among Frankish scribes). Frankish * forhist is attested by Old High German forst "forest", Middle Low German vorst "forest", Old English fyrhþ "forest, woodland, game preserve, hunting ground" (English frith ), and Old Norse fýri "coniferous forest", all of which derive from Proto-Germanic * furhísa- , * furhíþija- "a fir-wood, coniferous forest", from Proto-Indo-European * perk w u- "a coniferous or mountain forest, wooded height".
Uses of the word "forest" in English to denote any uninhabited area of non-enclosure are now considered archaic.  The word was introduced by the Norman rulers of England as a legal term (appearing in Latin texts like the Magna Carta) denoting an uncultivated area legally set aside for hunting by feudal nobility (see Royal Forest).  Tywi Forest, Wales
These hunting forests were not necessarily wooded much, if at all. However, as hunting forests did often include considerable areas of woodland, the word "forest" eventually came to mean wooded land more generally. [ citation needed ] By the start of the 14th century, the word appeared in English texts, indicating all three senses: the most common one, the legal term and the archaic usage.  Other terms used to mean "an area with a high density of trees" are wood, woodland, wold, weald, holt, frith and firth . Unlike forest , these are all derived from Old English and were not borrowed from another language. Some classifications now reserve the term woodland for an area with more open space between trees and distinguish among woodlands, open forests , and closed forests based on crown cover. 
The first known forests on Earth arose in the Late Devonian (approximately 380 million years ago), with the evolution of Archaeopteris .  Archaeopteris was a plant that was both tree-like and fern-like, growing to 10 metres (33 ft) in height. Archaeopteris quickly spread throughout the world, from the equator to subpolar latitudes.  Archaeopteris formed the first forest by being the first known species to cast shade due to its fronds and forming soil from its roots. Archaeopteris was deciduous, dropping its fronds onto the forest floor. The shade, soil, and forest duff from the dropped fronds created the first forest.  The shed organic matter altered the freshwater environment, slowing it down and providing food. This promoted freshwater fish. 
Main article: Forest ecology Temperate rainforest in Tasmania's Hellyer Gorge
Forests account for 75% of the gross primary productivity of the Earth's biosphere, and contain 80% of the Earth's plant biomass.  Forest ecosystems can be found in all regions capable of sustaining tree growth, at altitudes up to the tree line, except where natural fire frequency or other disturbance is too high, or where the environment has been altered by human activity.
The latitudes 10° north and south of the equator are mostly covered in tropical rainforest, and the latitudes between 53°N and 67°N have boreal forest. As a general rule, forests dominated by angiosperms ( broadleaf forests ) are more species-rich than those dominated by gymnosperms ( conifer , montane , or needleleaf forests ), although exceptions exist.
Forests sometimes contain many tree species within a small area (as in tropical rain and temperate deciduous forests), or relatively few species over large areas (e.g., taiga and arid montane coniferous forests). Forests are often home to many animal and plant species, and biomass per unit area is high compared to other vegetation communities. Much of this biomass occurs below ground in the root systems and as partially decomposed plant detritus. The woody component of a forest contains lignin, which is relatively slow to decompose compared with other organic materials such as cellulose or carbohydrate.
A forest consists of many components that can be broadly divided into two categories that are biotic (living) and abiotic (non-living) components. The living parts include trees, shrubs, vines, grasses and other herbaceous (non-woody) plants, mosses, algae, fungi, insects, mammals, birds, reptiles, amphibians, and microorganisms living on the plants and animals and in the soil.
A forest is made up of many layers. Starting from the ground level and moving up, the main layers of all forest types are the forest floor, the understory and the canopy. The emergent layer exists in tropical rainforests. Each layer has a different set of plants and animals depending upon the availability of sunlight, moisture and food.
A dry sclerophyll forest in Sydney, which is dominated by eucalyptus trees.
Forests can be classified in different ways and to different degrees of specificity. One such way is in terms of the biome in which they exist, combined with leaf longevity of the dominant species (whether they are evergreen or deciduous). Another distinction is whether the forests are composed predominantly of broadleaf trees, coniferous (needle-leaved) trees, or mixed.
The number of trees in the world, according to a 2015 estimate, is 3 trillion, of which 1.4 trillion are in the tropics or sub-tropics, 0.6 trillion in the temperate zones, and 0.7 trillion in the coniferous boreal forests. The estimate is about eight times higher than previous estimates, and is based on tree densities measured on over 400,000 plots. It remains subject to a wide margin of error, not least because the samples are mainly from Europe and North America. 
Forests can also be classified according to the amount of human alteration. Old-growth forest contains mainly natural patterns of biodiversity in established seral patterns, and they contain mainly species native to the region and habitat. In contrast, secondary forest is regrowing forest following timber harvest and may contain species originally from other regions or habitats. 
Different global forest classification systems have been proposed, but none has gained universal acceptance.  UNEP-WCMC's forest category classification system is a simplification of other more complex systems (e.g. UNESCO's forest and woodland 'subformations'). This system divides the world's forests into 26 major types, which reflect climatic zones as well as the principal types of trees. These 26 major types can be reclassified into 6 broader categories: temperate needleleaf; temperate broadleaf and mixed; tropical moist; tropical dry; sparse trees and parkland; and forest plantations.  Each category is described as a separate section below.Temperate needleleaf
Temperate needleleaf forests mostly occupy the higher latitude regions of the Northern Hemisphere, as well as high altitude zones and some warm temperate areas, especially on nutrient-poor or otherwise unfavourable soils. These forests are composed entirely, or nearly so, of coniferous species (Coniferophyta). In the Northern Hemisphere pines Pinus , spruces Picea , larches Larix , firs Abies , Douglas firs Pseudotsuga and hemlocks Tsuga , make up the canopy, but other taxa are also important. In the Southern Hemisphere, most coniferous trees (members of the Araucariaceae and Podocarpaceae) occur in mixtures with broadleaf species, and are classed as broadleaf and mixed forests. Temperate broadleaf and mixed Broadleaf forest in Bhutan
Temperate broadleaf and mixed forests include a substantial component of trees in the Anthophyta. They are generally characteristic of the warmer temperate latitudes, but extend to cool temperate ones, particularly in the southern hemisphere. They include such forest types as the mixed deciduous forests of the United States and their counterparts in China and Japan, the broadleaf evergreen rainforests of Japan, Chile and Tasmania, the sclerophyllous forests of Australia, central Chile, the Mediterranean and California, and the southern beech Nothofagus forests of Chile and New Zealand. Tropical moist
There are many different types of tropical moist forests, with lowland evergreen broad leaf tropical rainforests, for example várzea and igapó forests and the terra firma forests of the Amazon Basin; the peat swamp forests, dipterocarp forests of Southeast Asia; and the high forests of the Congo Basin. Seasonal tropical forests, perhaps the best description for the colloquial term "jungle", typically range from the rainforest zone 10 degrees north or south of the equator, to the Tropic of Cancer and Tropic of Capricorn. Forests located on mountains are also included in this category, divided largely into upper and lower montane formations on the basis of the variation of physiognomy corresponding to changes in altitude. Tropical dry
Tropical dry forests are characteristic of areas in the tropics affected by seasonal drought. The seasonality of rainfall is usually reflected in the deciduousness of the forest canopy, with most trees being leafless for several months of the year. However, under some conditions, e.g. less fertile soils or less predictable drought regimes, the proportion of evergreen species increases and the forests are characterised as "sclerophyllous". Thorn forest, a dense forest of low stature with a high frequency of thorny or spiny species, is found where drought is prolonged, and especially where grazing animals are plentiful. On very poor soils, and especially where fire or herbivory are recurrent phenomena, savannas develop. Sparse trees and parkland Taiga forest near Saranpaul in the northeast Ural Mountains, Khanty–Mansia, Russia. Trees include Picea obovata (dominant on right bank), Larix sibirica , Pinus sibirica , and Betula pendula .
Sparse trees and savanna are forests with lower canopy cover of trees. They occur principally in areas of transition from forested to non-forested landscapes. The two major zones in which these ecosystems occur are in the boreal region and in the seasonally dry tropics. At high latitudes, north of the main zone of boreal forest, growing conditions are not adequate to maintain a continuous closed forest cover, so tree cover is both sparse and discontinuous. This vegetation is variously called open taiga, open lichen woodland, and forest tundra. A savanna is a mixed woodland grassland ecosystem characterized by the trees being sufficiently widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach the ground to support an unbroken herbaceous layer consisting primarily of grasses. Savannas maintain an open canopy despite a high tree density. Forest plantations
Forest plantations are generally intended for the production of timber and pulpwood. Commonly mono-specific and/or composed of introduced tree species, these ecosystems are not generally important as habitat for native biodiversity. However, they can be managed in ways that enhance their biodiversity protection functions and they can provide ecosystem services such as maintaining nutrient capital, protecting watersheds and soil structure, and storing carbon.  
Forests provide a diversity of ecosystem services including converting carbon dioxide into oxygen and biomass, acting as a carbon sink, aiding in regulating climate, purifying water, mitigating natural hazards such as floods, and serving as a genetic reserve. Forests also serve as a source of lumber and as recreational areas.
Some researchers state that forests do not only provide benefits, but can in certain cases also incur costs to humans.   Forests may impose an economic burden,   diminish the enjoyment of natural areas,  reduce the food producing capacity of grazing land  and cultivated land,  reduce biodiversity   reduce available water for humans and wildlife,   harbour dangerous or destructive wildlife,   and act as reservoirs of human and livestock disease.  
The management of forests is often referred to as forestry. Forest management has changed considerably over the last few centuries, with rapid changes from the 1980s onwards culminating in a practice now referred to as sustainable forest management. Forest ecologists concentrate on forest patterns and processes, usually with the aim of elucidating cause-and-effect relationships. Foresters who practice sustainable forest management focus on the integration of ecological, social, and economic values, often in consultation with local communities and other stakeholders.
Humans have generally decreased the amount of forest worldwide. Anthropogenic factors that can affect forests include logging, urban sprawl, human-caused forest fires, acid rain, invasive species, and the slash and burn practices of swidden agriculture or shifting cultivation. The loss and re-growth of forest leads to a distinction between two broad types of forest, primary or old-growth forest and secondary forest. There are also many natural factors that can cause changes in forests over time including forest fires, insects, diseases, weather, competition between species, etc. In 1997, the World Resources Institute recorded that only 20% of the world's original forests remained in large intact tracts of undisturbed forest.  More than 75% of these intact forests lie in three countries—the boreal forests of Russia and Canada and the rainforest of Brazil.
In 2010, the Food and Agriculture Organization of the United Nations  reported that world deforestation, mainly the conversion of tropical forests to agricultural land, had decreased over the past ten years but still continues at a high rate in many countries. Globally, around 13 million hectares of forests were converted to other uses or lost through natural causes each year between 2000 and 2010 as compared to around 16 million hectares per year during the 1990s. The study covered 233 countries and areas. Brazil and Indonesia, which had the highest loss of forests in the 1990s, have significantly reduced their deforestation rates. China instituted a ban on logging, beginning in 1998, due to the erosion and flooding that it caused.  In addition, ambitious tree planting programmes in countries such as China, India, the United States and Vietnam - combined with natural expansion of forests in some regions - have added more than seven million hectares of new forests annually. As a result, the net loss of forest area was reduced to 5.2 million hectares per year between 2000 and 2010, down from 8.3 million hectares annually in the 1990s. In 2015, a study for Nature Climate Change showed that the trend has recently been reversed, leading to an "overall gain" in global biomass and forests. This gain is due especially to reforestation in China and Russia.  However new forests are not completely equivalent to old growth forests in terms of species diversity, resilience and carbon capture. On September 7, 2015, the Food and Agriculture Organization of the United Nations released a new study stating that, over the last 25 years, the global deforestation rate has decreased by 50% due to improved management of forests and greater government protection.  
Smaller areas of woodland in cities may be managed as urban forestry, sometimes within public parks. These are often created for human benefits; Attention Restoration Theory argues that spending time in nature reduces stress and improves health, while forest schools and kindergartens help young people to develop social as well as scientific skills in forests. These typically need to be close to where the children live, for practical logistics.
Canada has about 4,020,000 square kilometres (1,550,000 sq mi) of forest land. More than 90% of forest land is publicly owned and about 50% of the total forest area is allocated for harvesting. These allocated areas are managed using the principles of sustainable forest management, which includes extensive consultation with local stakeholders. About eight percent of Canada’s forest is legally protected from resource development.   Much more forest land—about 40 percent of the total forest land base—is subject to varying degrees of protection through processes such as integrated land use planning or defined management areas such as certified forests. 
By December 2006, over 1,237,000 square kilometers of forest land in Canada (about half the global total) had been certified as being sustainably managed.  Clearcutting, first used in the latter half of the 20th century, is less expensive, but devastating to the environment, and companies are required by law to ensure that harvested areas are adequately regenerated. Most Canadian provinces have regulations limiting the size of clearcuts, although some older clearcuts can range upwards of 110 square kilometres (27,000 acres) in size which were cut over several years.
In the United States, most forests have historically been affected by humans to some degree, though in recent years improved forestry practices has helped regulate or moderate large scale or severe impacts. However, the United States Forest Service estimates a net loss of about 2 million hectares (4,942,000 acres) between 1997 and 2020; this estimate includes conversion of forest land to other uses, including urban and suburban development, as well as afforestation and natural reversion of abandoned crop and pasture land to forest. However, in many areas of the United States, the area of forest is stable or increasing, particularly in many northern states. The opposite problem from flooding has plagued national forests, with loggers complaining that a lack of thinning and proper forest management has resulted in large forest fires.  
Robert Nesta "Bob" Marley, OM (6 February 1945 – 11 May 1981) was a Jamaican singer, songwriter and musician who became an international icon,      blending mostly reggae, ska and rocksteady in his compositions. Starting out in 1963 with the group the Wailers, he forged a distinctive songwriting and vocal style that would later resonate with audiences worldwide. The Wailers would go on to release some of the earliest reggae records with producer Lee "Scratch" Perry. 
After the Wailers disbanded in 1974,  Marley pursued a solo career upon his relocation to England that culminated in the release of the album Exodus in 1977, which established his worldwide reputation and elevated his status as one of the world's best-selling artists of all time, with sales of more than 75 million records.   Exodus stayed on the British album charts for 56 consecutive weeks. It included four UK hit singles: "Exodus", "Waiting in Vain", "Jamming", and "One Love". In 1978, he released the album Kaya , which included the hit singles "Is This Love" and "Satisfy My Soul". The greatest hits album, Legend , was released in 1984, three years after Marley died. It subsequently became the best-selling reggae album of all time.
Diagnosed with acral lentiginous melanoma in 1977, Marley died on 11 May 1981 in Miami at age 36. He was a committed Rastafari who infused his music with a sense of spirituality.  :242  He is credited with popularising reggae music around the world and served as a symbol of Jamaican culture and identity. Marley has also evolved into a global symbol and inspired numerous items of merchandise.
Bob Marley was born 6 February 1945 on the farm of his maternal grandfather in Nine Mile, Saint Ann Parish, Jamaica, to Norval Sinclair Marley (1885–1955) and Cedella Booker (1926–2008).  Norval Marley was a white Jamaican originally from Sussex, England, whose family claimed Syrian Jewish origins.    Norval claimed to have been a captain in the Royal Marines;  at the time of his marriage to Cedella Booker, an Afro-Jamaican then 18 years old. He was employed as a plantation overseer.   Bob Marley's full name is Robert Nesta Marley, though some sources give his birth name as Nesta Robert Marley, with a story that when Marley was still a boy a Jamaican passport official reversed his first and middle names because Nesta sounded like a girl's name.   Norval provided financial support for his wife and child but seldom saw them as he was often away. Bob Marley attended Stepney Primary and Junior High School which serves the catchment area of Saint Ann.   In 1955, when Bob Marley was 10 years old, his father died of a heart attack at the age of 70.  Marley's mother went on to marry Edward Booker, an American civil servant. The relationship brought Marley two American brothers: Richard and Anthony.  
Marley and Neville Livingston (later known as Bunny Wailer) had been childhood friends in Nine Mile. They had started to play music together while at Stepney Primary and Junior High School.  Marley left Nine Mile with his mother when he was 12 and moved to Trenchtown, Kingston. Cedella Booker and Thadeus Livingston (Bunny Wailer's father) had a daughter together whom they named Claudette Pearl,  who was a younger sister to both Bob and Bunny. Now that Marley and Livingston were living together in the same house in Trenchtown, their musical explorations deepened to include the latest R&B from American radio stations whose broadcasts reached Jamaica, and the new Ska music.  The move to Trenchtown was proving to be fortuitous, and Marley soon found himself in a vocal group with Bunny Wailer, Peter Tosh, Beverley Kelso and Junior Braithwaite. Joe Higgs, who was part of the successful vocal act Higgs and Wilson, resided on 3rd St., and his singing partner Roy Wilson had been raised by the grandmother of Junior Braithwaite. Higgs and Wilson would rehearse at the back of the houses between 2nd and 3rd Streets, and it wasn't long before Marley (now residing on 2nd St), Junior Braithwaite and the others were congregating around this successful duo.  Marley and the others didn't play any instruments at this time, and were more interested in being a vocal harmony group. Higgs was glad to help them develop their vocal harmonies, although more importantly, he had started to teach Marley how to play guitar—thereby creating the bedrock that would later allow Marley to construct some of the biggest-selling reggae songs in the history of the genre.  
In February 1962, Marley recorded four songs, "Judge Not", "One Cup of Coffee", "Do You Still Love Me?" and "Terror", at Federal Studio for local music producer Leslie Kong.  Three of the songs were released on Beverley's with "One Cup of Coffee" being released under the pseudonym Bobby Martell. 
In 1963, Bob Marley, Bunny Wailer, Peter Tosh, Junior Braithwaite, Beverley Kelso, and Cherry Smith were called the Teenagers. They later changed the name to the Wailing Rudeboys, then to the Wailing Wailers, at which point they were discovered by record producer Coxsone Dodd, and finally to the Wailers. Their single "Simmer Down" for the Coxsone label became a Jamaican #1 in February 1964 selling an estimated 70,000 copies.  The Wailers, now regularly recording for Studio One, found themselves working with established Jamaican musicians such as Ernest Ranglin (arranger "It Hurts To Be Alone"),  the keyboardist Jackie Mittoo and saxophonist Roland Alphonso. By 1966, Braithwaite, Kelso, and Smith had left the Wailers, leaving the core trio of Bob Marley, Bunny Wailer, and Peter Tosh. 
In 1966, Marley married Rita Anderson, and moved near his mother's residence in Wilmington, Delaware in the United States for a short time, during which he worked as a DuPont lab assistant and on the assembly line at a Chrysler plant, under the alias Donald Marley. 
Though raised as a Catholic, Marley became interested in Rastafari beliefs in the 1960s, when away from his mother's influence.  After returning to Jamaica, Marley formally converted to Rastafari and began to grow dreadlocks. The Rastafari proscription against cutting hair is based on the biblical Samson, who as a Nazirite, was expected to make certain religious vows, including the ritual treatment of his hair as described in Chapter Six of the Book of Numbers: "All the days of the vow of his separation there shall no razor come upon his head: until the days be fulfilled, in the which he separateth himself unto the Lord, he shall be holy, and shall let the locks of the hair of his head grow."(Numbers 6: 5 KJV)
After a financial disagreement with Dodd, Marley and his band teamed up with Lee "Scratch" Perry and his studio band, the Upsetters. Although the alliance lasted less than a year, they recorded what many consider the Wailers' finest work. Marley and Perry split after a dispute regarding the assignment of recording rights, but they would remain friends and work together again.
1969 brought another change to Jamaican popular music in which the beat slowed down even further. The new beat was a slow, steady, ticking rhythm that was first heard on the Maytals song "Do the Reggay." Marley approached producer Leslie Kong, who was regarded as one of the major developers of the reggae sound. For the recordings, Kong combined the Wailers with his studio musicians called Beverley's All-Stars, which consisted of the bassists Lloyd Parks and Jackie Jackson, the drummer Paul Douglas, the keyboard players Gladstone Anderson and Winston Wright, and the guitarists Rad Bryan, Lynn Taitt, and Hux Brown.  As David Moskowitz writes, "The tracks recorded in this session illustrated the Wailers’ earliest efforts in the new reggae style. Gone are the ska trumpets and saxophones of the earlier songs, with instrumental breaks now being played by the electric guitar." The songs recorded would be released as the album The Best of The Wailers , including tracks "Soul Shakedown Party," "Stop That Train," "Caution," "Go Tell It on the Mountain," "Soon Come," "Can’t You See," "Soul Captives," "Cheer Up," "Back Out," and "Do It Twice". Bob Marley's flat in 1972 at 34 Ridgmount Gardens, Bloomsbury, London
Between 1968 and 1972, Bob and Rita Marley, Peter Tosh and Bunny Wailer re-cut some old tracks with JAD Records in Kingston and London in an attempt to commercialise the Wailers' sound. Bunny later asserted that these songs "should never be released on an album ... they were just demos for record companies to listen to". In 1968, Bob and Rita visited songwriter Jimmy Norman at his apartment in the Bronx. Norman had written the extended lyrics for Kai Winding's "Time Is on My Side" (covered by the Rolling Stones) and had also written for Johnny Nash and Jimi Hendrix.  A three-day jam session with Norman and others, including Norman's co-writer Al Pyfrom, resulted in a 24-minute tape of Marley performing several of his own and Norman-Pyfrom's compositions. This tape is, according to Reggae archivist Roger Steffens, rare in that it was influenced by pop rather than reggae, as part of an effort to break Marley into the American charts.  According to an article in The New York Times , Marley experimented on the tape with different sounds, adopting a doo-wop style on "Stay With Me" and "the slow love song style of 1960's artists" on "Splish for My Splash".  An artist yet to establish himself outside his native Jamaica, Marley lived in Ridgmount Gardens, Bloomsbury, during 1972. 
In 1972, Bob Marley signed with CBS Records in London and embarked on a UK tour with American soul singer Johnny Nash.  While in London the Wailers asked their road manager Brent Clarke to introduce them to Chris Blackwell, who had licensed some of their Coxsone releases for his Island Records. The Wailers intended to discuss the royalties associated with these releases; instead the meeting resulted in the offer of an advance of £4,000 to record an album.  Since Jimmy Cliff, Island's top reggae star, had recently left the label, Blackwell was primed for a replacement. In Marley, Blackwell recognised the elements needed to snare the rock audience: "I was dealing with rock music, which was really rebel music. I felt that would really be the way to break Jamaican music. But you needed someone who could be that image. When Bob walked in he really was that image."  The Wailers returned to Jamaica to record at Harry J's in Kingston, which resulted in the album Catch a Fire .
Primarily recorded on an eight-track, Catch a Fire marked the first time a reggae band had access to a state-of-the-art studio and were accorded the same care as their rock 'n' roll peers.  Blackwell desired to create "more of a drifting, hypnotic-type feel than a reggae rhythm",  and restructured Marley's mixes and arrangements. Marley travelled to London to supervise Blackwell's overdubbing of the album which included tempering the mix from the bass-heavy sound of Jamaican music and omitting two tracks. 
The Wailers' first album for Island, Catch a Fire , was released worldwide in April 1973, packaged like a rock record with a unique Zippo lighter lift-top. Initially selling 14,000 units, it didn't make Marley a star, but received a positive critical reception.  It was followed later that year by the album Burnin' which included the song "I Shot the Sheriff". Eric Clapton was given the album by his guitarist George Terry in the hope that he would enjoy it.  Clapton was suitably impressed and chose to record a cover version of "I Shot the Sheriff" which became his first US hit since "Layla" two years earlier and reached number 1 on the Billboard Hot 100 on 14 September 1974.  Many Jamaicans were not keen on the new reggae sound on Catch a Fire , but the Trenchtown style of Burnin found fans across both reggae and rock audiences. 
During this period, Blackwell gifted his Kingston residence and company headquarters at 56 Hope Road (then known as Island House) to Marley. Housing Tuff Gong Studios, the property became not only Marley's office, but also his home. 
The Wailers were scheduled to open 17 shows in the US for Sly and the Family Stone. After four shows, the band was fired because they were more popular than the acts they were opening for.  The Wailers disbanded in 1974, with each of the three main members pursuing a solo career. The reason for the breakup is shrouded in conjecture; some [ who? ] believe that there were disagreements amongst Bunny Wailer, Peter Tosh, and Marley concerning performances, while others claim that Wailer and Tosh simply preferred solo work.
Despite the break-up, Marley continued recording as "Bob Marley & The Wailers". His new backing band included brothers Carlton and Aston "Family Man" Barrett on drums and bass respectively, Junior Marvin and Al Anderson on lead guitar, Tyrone Downie and Earl "Wya" Lindo on keyboards, and Alvin "Seeco" Patterson on percussion. The "I Threes", consisting of Judy Mowatt, Marcia Griffiths, and Marley's wife, Rita, provided backing vocals. In 1975, Marley had his international breakthrough with his first hit outside Jamaica, "No Woman, No Cry", from the Natty Dread album.  This was followed by his breakthrough album in the United States, Rastaman Vibration (1976), which reached the Top 50 of the Billboard Soul Charts. 
On 3 December 1976, two days before "Smile Jamaica", a free concert organised by the Jamaican Prime Minister Michael Manley in an attempt to ease tension between two warring political groups, Marley, his wife, and manager Don Taylor were wounded in an assault by unknown gunmen inside Marley's home. Taylor and Marley's wife sustained serious injuries, but later made full recoveries. Bob Marley received minor wounds in the chest and arm.  The attempt on his life was thought to have been politically motivated, as many felt the concert was really a support rally for Manley. Nonetheless, the concert proceeded, and an injured Marley performed as scheduled, two days after the attempt. When asked why, Marley responded, "The people who are trying to make this world worse aren't taking a day off. How can I?" The members of the group Zap Pow played as Bob Marley's backup band before a festival crowd of 80,000 while members of The Wailers were still missing or in hiding.  
Marley left Jamaica at the end of 1976, and after a month-long "recovery and writing" sojourn at the site of Chris Blackwell's Compass Point Studios in Nassau, Bahamas, arrived in England, where he spent two years in self-imposed exile.
Whilst in England, he recorded the albums Exodus and Kaya . Exodus stayed on the British album charts for 56 consecutive weeks. It included four UK hit singles: "Exodus", "Waiting in Vain", "Jamming", and "One Love" (a rendition of Curtis Mayfield's hit, "People Get Ready"). During his time in London, he was arrested and received a conviction for possession of a small quantity of cannabis.  In 1978, Marley returned to Jamaica and performed at another political concert, the One Love Peace Concert, again in an effort to calm warring parties. Near the end of the performance, by Marley's request, Michael Manley (leader of then-ruling People's National Party) and his political rival Edward Seaga (leader of the opposing Jamaica Labour Party), joined each other on stage and shook hands. 
Under the name Bob Marley and the Wailers 11 albums were released, four live albums and seven studio albums. The releases included Babylon by Bus , a double live album with 13 tracks, were released in 1978 and received critical acclaim. This album, and specifically the final track "Jamming" with the audience in a frenzy, captured the intensity of Marley's live performances. "Marley wasn't singing about how peace could come easily to the World but rather how hell on Earth comes too easily to too many. His songs were his memories; he had lived with the wretched, he had seen the downpressers and those whom they pressed down." – Mikal Gilmore, Rolling Stone  :61
Survival , a defiant and politically charged album, was released in 1979. Tracks such as "Zimbabwe", "Africa Unite", "Wake Up and Live", and "Survival" reflected Marley's support for the struggles of Africans. His appearance at the Amandla Festival in Boston in July 1979 showed his strong opposition to South African apartheid, which he already had shown in his song "War" in 1976. In early 1980, he was invited to perform at 17 April celebration of Zimbabwe's Independence Day.
Uprising (1980) was Bob Marley's final studio album, and is one of his most religious productions; it includes "Redemption Song" and "Forever Loving Jah".  Confrontation , released posthumously in 1983, contained unreleased material recorded during Marley's lifetime, including the hit "Buffalo Soldier" and new mixes of singles previously only available in Jamaica. 
In July 1977, Marley was found to have a type of malignant melanoma under the nail of a toe. Contrary to urban legend, this lesion was not primarily caused by an injury during a football match that year, but was instead a symptom of the already-existing cancer. Marley turned down his doctors' advice to have his toe amputated (which would have hindered his performing career), citing his religious beliefs, and instead the nail and nail bed were removed and a skin graft taken from his thigh to cover the area.    Despite his illness, he continued touring and was in the process of scheduling a world tour in 1980. 
The album Uprising was released in May 1980. The band completed a major tour of Europe, where it played its biggest concert to 100,000 people in Milan. After the tour Marley went to America, where he performed two shows at Madison Square Garden in New York City as part of the Uprising Tour.
Marley's last concert occurred at the Stanley Theater (now called The Benedum Center For The Performing Arts) in Pittsburgh, Pennsylvania, on 23 September 1980. Just two days earlier he had collapsed during a jogging tour in Central Park and was brought to hospital where he learned that the cancer had spread to his brain.
The only known photographs from the show were featured in Kevin Macdonald's documentary film Marley . 
Shortly afterwards, Marley's health deteriorated as the cancer had spread throughout his body. The rest of the tour was cancelled and Marley sought treatment at the Bavarian clinic of Josef Issels, where he received an alternative cancer treatment called Issels treatment partly based on avoidance of certain foods, drinks, and other substances. After fighting the cancer without success for eight months Marley boarded a plane for his home in Jamaica. 
While Marley was flying home from Germany to Jamaica, his vital functions worsened. After landing in Miami, Florida, he was taken to the hospital for immediate medical attention. Marley died on 11 May 1981 at Cedars of Lebanon Hospital in Miami (now University of Miami Hospital), aged 36. The spread of melanoma to his lungs and brain caused his death. His final words to his son Ziggy were "Money can't buy life." 
Marley received a state funeral in Jamaica on 21 May 1981, which combined elements of Ethiopian Orthodoxy   and Rastafari tradition.  He was buried in a chapel near his birthplace with his red Gibson Les Paul (some accounts say it was a Fender Stratocaster).  
On 21 May 1981, Jamaican Prime Minister Edward Seaga delivered the final funeral eulogy to Marley, declaring:
His voice was an omnipresent cry in our electronic world. His sharp features, majestic looks, and prancing style a vivid etching on the landscape of our minds. Bob Marley was never seen. He was an experience which left an indelible imprint with each encounter. Such a man cannot be erased from the mind. He is part of the collective consciousness of the nation.  :58
Bob Marley was a member for some years of the Rastafari movement, whose culture was a key element in the development of reggae. Bob Marley became an ardent proponent of Rastafari, taking its music out of the socially deprived areas of Jamaica and onto the international music scene. He once gave the following response, which was typical, to a question put to him during a recorded interview:
Interviewer: "Can you tell the people what it means being a Rastafarian?"
According to Marley's biographers, he affiliated with the Twelve Tribes Mansion, one of the Mansions of Rastafari. He was in the denomination known as "Tribe of Joseph", because he was born in February (each of the twelve sects being composed of members born in a different month). He signified this in his 1976 Rastaman Vibration album liner notes, quoting the portion from Deuteronomy 33:16 that includes Jacob's blessing to his son Joseph. Jacob, aka Israel, was a Jewish patriarch whose twelve sons became the ancestors of much of the growing Israelite population. The Rastaman Vibration back cover also quoted the Genesis 49:22-24, where Jacob describes his son Joseph as a 'fruitful bough' growing taller than the others, 'over the wall,' and suffering an attempted murder by bowmen who 'provoke, hate and shoot arrows at him', wounding him seriously. But Joseph survived because 'his arms and hands were made strong by the hands of the God of Jacob', which was understood by many as an eerie prophecy as, a few days after the album was released, Kingston gunmen shot Marley (bullets hit his arm and chest) who like Joseph, survived.
Archbishop Abuna Yesehaq baptised Marley into the Ethiopian Orthodox Church, giving him the name Berhane Selassie, on 4 November 1980, shortly before his death.  
Bob Marley married Alpharita Constantia "Rita" Anderson in Kingston, Jamaica, on 10 February 1966.  Marley had many children: four with his wife Rita, two adopted from Rita's previous relationships, and several others with different women. The Bob Marley official website acknowledges 11 children.
Those listed on the official site are:
Other sites have noted additional individuals who claim to be family members,  as noted below:
Aside from music, association football played a major role throughout his life.  As well as playing the game, in parking lots, fields, and even inside recording studios, growing up he followed the Brazilian club Santos and its star player Pelé.  Marley surrounded himself with people from the sport, and in the 1970s made the Jamaican international footballer Allan "Skill" Cole his tour manager.  He told a journalist, "If you want to get to know me, you will have to play football against me and the Wailers." 
Marley was a Pan-Africanist, and believed in the unity of African people worldwide. His beliefs were rooted in his Rastafari religious beliefs.  He was substantially inspired by Marcus Garvey, and had anti-imperialist and pan-Africanist themes in many of his songs, such as "Zimbabwe", "Exodus", "Survival", "Blackman Redemption", and "Redemption Song". "Redemption Song" draws influence from a speech given by Marcus Garvey in Nova Scotia, 1937.  Marley held that independence of African countries from European domination was a victory for all those in the African diaspora. In the song "Africa Unite", he sings of a desire for all peoples of the African diaspora to come together and fight against "Babylon"; similarly, in the song "Zimbabwe", he marks the liberation of the whole continent of Africa, and evokes calls for unity between all Africans, both within and outside Africa. Cannabis See also: Rastafari and cannabis
Marley considered cannabis a healing herb, a "sacrament", and an "aid to medication"; he supported the legalisation of the drug.  He thought that marijuana use was prevalent in the Bible, reading passages such as Psalms 104:14 as showing approval of its usage.  Marley began to use cannabis when he converted to the Rastafari faith from Catholicism in 1966. He was arrested in 1968 after being caught with cannabis, but continued to use marijuana in accordance with his religious beliefs. Of his marijuana usage, he said, "When you smoke herb, herb reveal yourself to you. All the wickedness you do, the herb reveal itself to yourself, your conscience, show up yourself clear, because herb make you meditate. Is only a natural t'ing and it grow like a tree."  Marley saw marijuana usage as a vital factor in religious growth and connection with Jah, and as a way to philosophise and become wiser. 
A statue was inaugurated, next to the national stadium on Arthur Wint Drive in Kingston to commemorate him.  In 2006, the New York City Department of Education co-named a portion of Church Avenue from Remsen Avenue to East 98th Street in the East Flatbush section of Brooklyn as "Bob Marley Boulevard".   In 2008, a statue of Marley was inaugurated in Banatski Sokolac, Serbia. 
Internationally, Marley's message also continues to reverberate among various indigenous communities. For instance, the Australian Aboriginal people continue to burn a sacred flame to honour his memory in Sydney's Victoria Park, while members of the Amerindian Hopi and Havasupai tribe revere his work.  :5 There are also many tributes to Bob Marley throughout India, including restaurants, hotels, and cultural festivals.  
Marley has also evolved into a global symbol, which has been endlessly merchandised through a variety of mediums. In light of this, author Dave Thompson in his book Reggae and Caribbean Music , laments what he perceives to be the commercialised pacification of Marley's more militant edge, stating:
Bob Marley ranks among both the most popular and the most misunderstood figures in modern culture ... That the machine has utterly emasculated Marley is beyond doubt. Gone from the public record is the ghetto kid who dreamed of Che Guevara and the Black Panthers, and pinned their posters up in the Wailers Soul Shack record store; who believed in freedom; and the fighting which it necessitated, and dressed the part on an early album sleeve; whose heroes were James Brown and Muhammad Ali; whose God was Ras Tafari and whose sacrament was marijuana. Instead, the Bob Marley who surveys his kingdom today is smiling benevolence, a shining sun, a waving palm tree, and a string of hits which tumble out of polite radio like candy from a gumball machine. Of course it has assured his immortality. But it has also demeaned him beyond recognition. Bob Marley was worth far more. 
Several film adaptations have evolved as well. For instance, a feature-length documentary about his life, Rebel Music , won various awards at the Grammys. With contributions from Rita, The Wailers, and Marley's lovers and children, it also tells much of the story in his own words.  In February 2008, director Martin Scorsese announced his intention to produce a documentary movie on Marley. The film was set to be released on 6 February 2010, on what would have been Marley's 65th birthday.  However, Scorsese dropped out due to scheduling problems. He was replaced by Jonathan Demme,  who dropped out due to creative differences with producer Steve Bing during the beginning of editing. Kevin Macdonald replaced Demme  and the film, Marley , was released on 20 April 2012.  In March 2008, The Weinstein Company announced its plans to produce a biopic of Bob Marley, based on the book No Woman No Cry: My Life With Bob Marley by Rita Marley. Rudy Langlais will produce the script by Lizzie Borden and Rita Marley will be executive producer.  In 2011, ex-girlfriend and filmmaker Esther Anderson, along with Gian Godoy, made the documentary Bob Marley: The Making of a Legend , which premiered at the Edinburgh International Film Festival. 
In October 2015, Jamaican author Marlon James' novel A Brief History of Seven Killings , a fictional account of the attempted assassination of Marley, won the 2015 Man Booker Prize at a ceremony in London.