🇬🇾South America · South America

Guyana

From the Amerindian peoples of the Guiana highlands and three Dutch plantation colonies to British Guiana, a society forged by slavery and indenture, and an independent nation now transformed by offshore oil.

Guyana, the 'land of many waters' on the north-eastern shoulder of South America, was home to Arawak, Carib and Warrau peoples long before Dutch traders planted the colonies of Essequibo, Berbice and Demerara and engineered a coastal world of dams, dykes and sluice-gates below the high-tide line. A sugar economy built on enslaved Africans gave rise to the great Berbice rebellion of 1763 under Cuffy, today the nation's first national hero, and after emancipation in 1838 planters imported indentured labourers from India, Portugal and China, producing Guyana's distinctive Indo- and Afro-Guyanese society. The three colonies, ceded to Britain and united as British Guiana in 1831, moved through the rivalry of Cheddi Jagan and Forbes Burnham to independence on 26 May 1966 and a cooperative republic in 1970. Since the first major offshore oil discovery in 2015, Guyana has become one of the world's fastest-growing economies, while the long-running Essequibo territorial controversy with Venezuela is now before the International Court of Justice.

Independence from the United Kingdom

26 May 1966

Guyana became an independent state within the Commonwealth at midnight on 26 May 1966, when British Guiana shed its colonial name and took the name Guyana, with Forbes Burnham as its first prime minister and Cheddi Jagan as leader of the opposition. The United States recognised the new nation the same day and opened its embassy at Georgetown. On 23 February 1970 — the anniversary of the 1763 Berbice slave rebellion — Guyana was proclaimed a cooperative republic, severing the last constitutional ties to the British crown while remaining in the Commonwealth.

Indigenous peoples
Arawak, Carib and Warrau, settlers of the Guiana highlands and coast
Dutch colonies
Essequibo, Berbice and Demerara, drained by polders, dykes and kokers
British Guiana formed
1831, uniting the three colonies ceded to Britain at the Congress of Vienna
Emancipation
Full freedom in 1838, followed by Indian, Portuguese and Chinese indenture
Independence
26 May 1966; cooperative republic 23 February 1970
Capital
Georgetown, founded 1781 as Stabroek at the mouth of the Demerara

6 eras · 22 sourced events · 15 references · last verified

Chapter 01 · Pre-1600

The First Peoples and the Land of Many Waters

Long before any European sail appeared off the Wild Coast, the rivers, rainforests and table-top highlands of present-day Guyana were home to Amerindian peoples — Arawak, Carib and Warrau — whose worlds gave the country its name and its first place-names.

The first human inhabitants of Guyana probably entered the highlands during the first millennium BCE, hunting, fishing and cultivating cassava along the great rivers that drain the Guiana Shield to the Atlantic. By the time of European contact the territory was a mosaic of Amerindian peoples rather than a single state. Among the principal groups were the coastal and riverine Arawak (Lokono), the Carib peoples of the interior, and the Warrau (Warao) of the swampy delta lands, alongside the Wapishana, Arecuna and Akawaio of the savannahs and uplands. The very name Guyana derives from an Amerindian word commonly rendered as 'land of many waters', a description borne out by the Essequibo, Demerara, Berbice and Courantyne rivers.

The land itself shaped these societies. Behind the narrow, alluvial coastal strip rose dense equatorial rainforest, and beyond it the ancient sandstone tablelands of the Guiana highlands, where the Potaro River plunges 226 metres in a single drop at Kaieteur Falls — among the world's highest single-drop waterfalls and long sacred to the Patamona people. The interior savannahs of the Rupununi and the Pakaraima mountains supported smaller, mobile communities, while the fertile but flood-prone coast remained largely unsettled, a quality that would prove decisive when Europeans arrived seeking land to drain and plant.

European maps named this stretch of the South American shore the 'Wild Coast', a no-man's-land between the Spanish Orinoco and Portuguese Amazon that neither Iberian power effectively occupied. Spanish and other navigators probed the rivers in the sixteenth century in search of the fabled golden kingdom of El Dorado, said to lie in the interior, but found no empire to conquer. The Amerindian peoples, never fully subdued, would become trading partners, guides and sometimes allies of the newcomers, and their descendants — today a small minority — remain custodians of the forested interior that covers most of the modern republic.

Guyana — the land of many waters — takes its name from the rivers that carry the rains of the highlands down to the Atlantic.

On the Amerindian origin of the country's name

Turning points

  1. 1st millennium BCEPeoples & Migration

    Amerindian settlement of the Guianas

    Arawak, Carib and Warrau peoples settle the rivers, coast and highlands of present-day Guyana, developing cassava farming, fishing and riverine trade.

    See the data

    [1] [8]

  2. 16th centuryColonisation

    The Wild Coast and El Dorado

    Spanish and other navigators probe the rivers of the 'Wild Coast' in search of the golden kingdom of El Dorado, but find no empire to conquer.

    See the data

    [1]

Chapter sources: Guyana — History (Colonialism, Independence, Culture), Guyana and Belize: Country Studies, Kaieteur Falls

Chapter 02 · c. 1580 - 1814

The Dutch Colonies and the Engineered Coast

Dutch traders and planters created three colonies — Essequibo, Berbice and Demerara — and built an extraordinary coastal landscape of dams, dykes, canals and sluice-gates that wrested sugar lands from the sea, all worked by enslaved Africans.

Dutch merchants of the West India Company established the first lasting European settlements, planting trading posts upriver from about 1580 and founding the colony of Essequibo around 1616, Berbice in 1627 and, later, Demerara, which split off from Essequibo in 1745. At first the colonists traded with the Amerindians for dyes and timber and planted tobacco and coffee on the riverbanks. Over the following decades they moved their plantations down to the fertile but waterlogged coast, importing ever more enslaved Africans to clear, drain and cultivate the land for sugar, which became the colonies' overwhelming wealth.

Taming that coast was a feat of Dutch hydraulic engineering. Much of the inhabited coastal plain lies below the level of the sea at high tide, so the planters enclosed their estates in polders ringed by earthen dams and sea-walls, threaded them with drainage and navigation canals, and controlled the water with kokers — wooden sluice-gates that let rainwater out at low tide and held the ocean back at high. This intricate, labour-devouring system, still the skeleton of Guyana's coast today, made commercial agriculture possible and bound the enslaved population to relentless toil maintaining the dams and trenches on which every life depended.

Such a regime bred resistance. In February 1763 the enslaved of Berbice rose in one of the greatest slave revolts of the Americas, led by Cuffy (Kofi), an Akan-born house slave who proclaimed himself governor of Berbice and for nearly a year controlled much of the colony before Dutch reinforcements crushed the rising. The colonies changed hands repeatedly during the Anglo-Dutch and Napoleonic wars; Britain seized them several times, and in 1781 a British force founded the town of Stabroek at the mouth of the Demerara, the nucleus of the future capital, Georgetown. Possession was finally settled at the Congress of Vienna, which ceded Essequibo, Demerara and Berbice to Britain in 1814.

Much of Guyana's coast lies below the sea at high tide; its sugar wealth was wrung from the ocean by dams, canals and sluice-gates.

On the Dutch engineering of the coastal plain

Turning points

  1. c. 1616Colonisation

    Founding of Essequibo

    The Dutch establish the colony of Essequibo, the oldest of the three, followed by Berbice (1627) and Demerara (split from Essequibo in 1745).

    See the data

    [1] [9]

  2. 17th-18th c.Economy & Trade

    The engineered sugar coast

    Dutch planters drain the coastal plain with polders, dams, canals and koker sluice-gates, building a below-sea-level sugar landscape worked by enslaved Africans.

    See the data

    [1] [8]

  3. Feb 1763War & Rupture

    The Berbice slave rebellion

    Enslaved Africans led by Cuffy rise in Berbice, holding much of the colony for almost a year in one of the largest slave revolts in the Americas before being suppressed.

    See the data

    [1] [11]

  4. 1781Formation

    Founding of Stabroek (Georgetown)

    A British occupying force lays out the town of Stabroek at the mouth of the Demerara River; renamed Georgetown in 1812, it becomes the colony's capital.

    [6]

Figures of the era

Cuffy (Kofi)died 1763

Leader of the 1763 Berbice rebellion

Akan-born enslaved man who led the great Berbice rebellion of 1763, declared himself governor of Berbice, and held much of the colony for nearly a year. Guyana's first national hero, he is commemorated by the 1763 Monument in Georgetown and on Republic Day, 23 February.

[1] [11]

Chapter sources: Guyana — History (Colonialism, Independence, Culture), Guyana and Belize: Country Studies, A Guide to the History of Recognition, Diplomatic, and Consular Relations: Guyana, The 1763 Monument, Georgetown, Guyana

Chapter 03 · 1814 - 1928

British Guiana: Emancipation and Indenture

United as British Guiana in 1831, the sugar colony passed from slavery to freedom through the Demerara rising of 1823 and emancipation in 1838, after which planters imported indentured labourers from India, Portugal and China — peopling the multi-ethnic society of modern Guyana.

Britain governed the three ceded colonies separately until 1831, when Essequibo, Demerara and Berbice were combined into the single Crown colony of British Guiana, with Georgetown as its capital. The economy remained overwhelmingly a sugar economy worked by enslaved Africans. In August 1823 some nine to twelve thousand enslaved people in Demerara rose in a largely non-violent revolt, sparked by a mistaken belief that emancipation had been granted and was being withheld; the colonial authorities crushed it with hundreds of deaths. The arrest, conviction and death in prison of the English missionary John Smith, accused of fomenting the rising, caused outrage in Britain and strengthened the abolitionist cause.

Parliament abolished slavery across the British Empire in 1834, with a transitional 'apprenticeship' that ended in full emancipation on 1 August 1838. Freed Africans left the plantations in large numbers to found their own villages and pool their savings to buy abandoned estates, building the foundations of an independent Afro-Guyanese peasantry. The planters, desperate to replace plantation labour, turned to indentured immigration. The first indentured labourers from India arrived in British Guiana on 5 May 1838, beginning a flow that, over some eight decades, brought roughly a quarter of a million people from the Indian subcontinent, alongside smaller numbers of Portuguese (chiefly from Madeira) and Chinese workers.

This great churning of peoples created the plural society that defines Guyana today. Indian indentured immigrants and their descendants — Indo-Guyanese — became the largest population group, concentrated on the sugar estates and in rice farming, while Afro-Guyanese predominated in the villages, towns and the public service, and Amerindians remained in the interior. Portuguese and Chinese migrants moved into trade and shop-keeping. The indenture system, criticised as a 'new system of slavery', was finally ended after 1917, but the ethnic and economic divisions it laid down would shape the colony's politics deep into the twentieth century.

On 1 August 1838 the apprenticeship ended and slavery was finally over; within months the first indentured ships from India were anchoring off the sugar coast.

On emancipation and the beginnings of indenture

Turning points

  1. Aug 1823War & Rupture

    The Demerara rising

    Thousands of enslaved people in Demerara rebel, believing emancipation has been withheld; the revolt is brutally suppressed, and the death of missionary John Smith galvanises British abolitionists.

    See the data

    [1] [8]

  2. 1831Colonisation

    Creation of British Guiana

    Britain unites the colonies of Essequibo, Demerara and Berbice into a single Crown colony, British Guiana, with Georgetown as its capital.

    See the data

    [9] [1]

  3. 1838Peoples & Migration

    Emancipation and Indian indenture

    Full emancipation takes effect on 1 August 1838; the first indentured labourers from India arrive on 5 May 1838, beginning decades of immigration that reshape the colony's population.

    See the data

    [1] [8]

  4. 1917Peoples & Migration

    End of Indian indenture

    Indentured immigration from India is brought to a close after some 250,000 people have come to British Guiana, leaving Indo-Guyanese the colony's largest ethnic group.

    See the data

    [8] [1]

Chapter sources: Guyana — History (Colonialism, Independence, Culture), Guyana and Belize: Country Studies, A Guide to the History of Recognition, Diplomatic, and Consular Relations: Guyana

Chapter 04 · 1928 - 1970

Jagan, Burnham and the Road to Independence

The mid-twentieth century brought mass politics, the rivalry of Cheddi Jagan and Forbes Burnham, Cold War intervention, and a split along ethnic lines that carried British Guiana to independence in 1966 and a cooperative republic in 1970.

Modern nationalist politics began with the labour movement on the sugar estates and matured after the Second World War. In 1950 the Indo-Guyanese dentist Cheddi Jagan and the Afro-Guyanese barrister Forbes Burnham founded the People's Progressive Party (PPP), a broad anti-colonial coalition. When a new constitution allowed elections under universal suffrage in 1953, the PPP swept to victory and Jagan became chief minister. Alarmed by the new government's leftism at the height of the Cold War, Britain suspended the constitution after only 133 days in October 1953, landed troops, and stalled self-government for years.

The movement then fractured. In 1955 Burnham broke with Jagan and in 1957 formed the People's National Congress (PNC), and the parties hardened into ethnic blocs — the PPP drawing Indo-Guyanese support, the PNC African Guyanese. Jagan's PPP won the elections of 1957 and 1961, and he served as premier as the colony moved toward self-rule. Fearful of a Marxist government on the South American mainland, the United States and Britain worked to keep Jagan from power; Britain changed the electoral system to proportional representation, which in 1964 enabled Burnham to form a coalition government with the smaller United Force, displacing Jagan.

It was Burnham who led the colony to the prize of nationhood. British Guiana became the independent state of Guyana at midnight on 26 May 1966, with Burnham as prime minister and Jagan as leader of the opposition; in a symbolic gesture the two rivals embraced before the lowering of the Union Jack. Four years later, on 23 February 1970 — chosen to honour Cuffy's rebellion of 1763 — Guyana was proclaimed a cooperative republic within the Commonwealth, with an elected president as ceremonial head of state and Burnham retaining real power as prime minister. The young nation inherited both the promise of self-government and the deep ethnic division bequeathed by its colonial past.

As the Union Jack came down at midnight, the rival leaders Burnham and Jagan embraced — a moment of unity in a nation already divided.

On the independence ceremony of 26 May 1966

Turning points

  1. 1953Politics & Power

    PPP victory and suspended constitution

    The People's Progressive Party wins the first elections under universal suffrage and Jagan becomes chief minister, but Britain suspends the constitution and sends troops after 133 days.

    [3] [8]

  2. 1955-1957Politics & Power

    The PPP splits along ethnic lines

    Forbes Burnham breaks with Jagan and forms the People's National Congress; the two parties harden into Afro- and Indo-Guyanese blocs that dominate national politics.

    [2] [4]

  3. 26 May 1966Independence

    Independence of Guyana

    British Guiana becomes the independent nation of Guyana within the Commonwealth, with Forbes Burnham as first prime minister and Cheddi Jagan as opposition leader.

    See the data

    [2] [9]

  4. 23 Feb 1970Politics & Power

    The Cooperative Republic

    Guyana is proclaimed a cooperative republic, marking the date of Cuffy's 1763 rebellion as Republic Day while remaining within the Commonwealth.

    [2] [9]

Figures of the era

Cheddi Jagan1918-1997

Premier and later President of Guyana

American-trained dentist and Marxist leader of the People's Progressive Party, the first popularly elected premier of British Guiana and the foremost Indo-Guyanese statesman. Kept from power for decades, he was finally elected president in 1992 and is widely regarded as a father of the nation.

[3]

Forbes Burnham1923-1985

First Prime Minister and President of Guyana

London-trained barrister and Afro-Guyanese leader of the People's National Congress who led the colony to independence in 1966 and ruled until his death in 1985, declaring the Cooperative Republic and nationalising the economy.

[4]

Chapter sources: Cheddi Jagan, Forbes Burnham, Guyana — Independence, Ethnicity, Politics, Guyana and Belize: Country Studies, A Guide to the History of Recognition, Diplomatic, and Consular Relations: Guyana

Chapter 05 · 1970 - 1992

The Burnham Era and the Shadow of Jonestown

Under Forbes Burnham the cooperative republic swung left and nationalised the commanding heights of the economy, while the country drew the world's horrified attention in 1978 as the site of the Jonestown tragedy.

Burnham's cooperative republic took a sharply socialist turn in the 1970s. Between 1971 and 1976 the government nationalised the foreign-owned bauxite industry — beginning with the Demerara Bauxite Company in 1971 — and the British-owned sugar estates of Bookers, until by the end of the decade the state controlled the great majority of the economy. Burnham sought a leading role among non-aligned and Third World nations, established ties with Cuba, the Soviet Union and other communist states, and recast Guyana as a 'cooperative socialist republic' under a new constitution adopted in 1980 that made him executive president. The era brought ambitious social programmes but also economic decline, shortages, emigration and elections widely condemned as rigged.

In this period of isolation Guyana became, through no design of its own, the setting of one of the twentieth century's most notorious tragedies. The American preacher Jim Jones had moved his Peoples Temple from California to a remote agricultural settlement in the north-western forest, named Jonestown. On 18 November 1978, after a United States congressman, Leo Ryan, was murdered while investigating the commune, Jones directed a mass murder-suicide in which more than 900 of his followers died, many of them by drinking cyanide-laced punch. It remained the largest deliberate single loss of American civilian life until the attacks of 11 September 2001, and Jonestown left an enduring, if undeserved, association in the world's imagination.

Forbes Burnham died in office in 1985 and was succeeded by Desmond Hoyte, who began to liberalise the economy and ease the country away from one-party dominance. Under domestic and international pressure for clean elections, Guyana held a free and internationally observed vote in October 1992. It returned Cheddi Jagan and the People's Progressive Party to power after twenty-eight years in opposition — a peaceful transfer that closed the Burnham era and reopened multiparty democracy. When Jagan died in office in 1997, his American-born widow Janet Jagan was elected president, the first woman to lead Guyana.

More than nine hundred people died at Jonestown on 18 November 1978 — the largest deliberate loss of American civilian life until September 2001.

On the Jonestown tragedy in the Guyanese forest

Turning points

  1. 1971-1976Economy & Trade

    Nationalisation of the economy

    Burnham's government nationalises the foreign-owned bauxite and sugar industries, bringing most of the economy under state control in a 'cooperative socialist' programme.

    See the data

    [4] [2]

  2. 18 Nov 1978Catastrophe

    The Jonestown tragedy

    At the Peoples Temple settlement of Jonestown, more than 900 followers of the American preacher Jim Jones die in a mass murder-suicide after the killing of a visiting U.S. congressman.

    See the data

    [7]

  3. 1985Politics & Power

    Death of Burnham; Hoyte succeeds

    Forbes Burnham dies in office and is succeeded by Desmond Hoyte, who begins to liberalise the economy and ease political controls.

    [4] [8]

  4. Oct 1992Politics & Power

    Return of Jagan and free elections

    Internationally observed elections return Cheddi Jagan and the PPP to power after 28 years, restoring multiparty democracy; his widow Janet Jagan later becomes Guyana's first woman president.

    [3] [5]

Figures of the era

Janet Jagan1920-2009

President of Guyana

American-born activist and co-founder of the People's Progressive Party who, after a lifetime in Guyanese politics alongside her husband Cheddi Jagan, was elected president in 1997 — the first woman to lead Guyana and the first U.S.-born woman elected to lead any nation.

[5]

Chapter sources: Forbes Burnham, Guyana — Independence, Ethnicity, Politics, Jonestown, Cheddi Jagan, Janet Jagan, Guyana and Belize: Country Studies

Chapter 06 · 1992 - present

Oil, the Essequibo Controversy and the Present

A poor, debt-burdened nation at the turn of the century, Guyana has been transformed since 2015 by one of the world's great offshore oil discoveries, even as the century-old Essequibo territorial controversy with Venezuela reaches the International Court of Justice.

For most of its independent life Guyana was among the poorest countries in the Americas, dependent on sugar, rice, bauxite and gold, and burdened by heavy debt and emigration. That changed dramatically when, in 2015, ExxonMobil and its partners made the first major oil discovery in the offshore Stabroek block. More than thirty further finds followed, and first production began in December 2019. Output rose with extraordinary speed — past 645,000 barrels a day by early 2024 — making Guyana one of the fastest-growing economies on earth and, per head, one of the largest emerging oil producers in the world. A sovereign Natural Resource Fund was created to manage the windfall, even as debate continues over how to share the new wealth and avoid the 'resource curse'.

The oil lies offshore a coast whose land border has been contested for more than a century. The Essequibo region — the western two-thirds of Guyana, known in Venezuela as the Guayana Esequiba — was awarded to British Guiana by an international arbitral tribunal in the Award of 3 October 1899. Venezuela accepted and demarcated that boundary for decades, but in 1962 it declared the award null and void and revived its claim. Under the 1966 Geneva Agreement, signed by Britain, Venezuela and Guyana on the eve of independence, the parties agreed to seek a peaceful settlement, and the matter passed through years of mediation by the United Nations Secretary-General.

In 2018 Guyana brought the controversy before the International Court of Justice in The Hague, seeking confirmation that the 1899 award is valid and binding. The Court found in 2020 that it had jurisdiction, and public hearings on the merits of the case — formally titled the Arbitral Award of 3 October 1899 (Guyana v. Venezuela) — were held in May 2026. The dispute, which both states pursue while professing commitment to a peaceful resolution, remains unresolved and is treated here without prejudice to either side's position. Whatever the Court decides, an independent Guyana of fewer than a million people now faces the twin challenges of governing sudden oil wealth and securing its frontiers, the latest chapter in a history shaped by water, migration and contested ground.

In barely a decade Guyana went from its first offshore discovery to one of the world's fastest-growing economies.

On the oil boom since 2015

Turning points

  1. 2015Economy & Trade

    First offshore oil discovery

    ExxonMobil and partners make the first major oil discovery in the offshore Stabroek block, beginning Guyana's transformation into a significant petroleum producer.

    See the data

    [13] [14]

  2. 2018Politics & Power

    Guyana takes Essequibo case to the ICJ

    Guyana files proceedings at the International Court of Justice seeking to confirm the 1899 arbitral award fixing its boundary with Venezuela.

    [10]

  3. Dec 2019Economy & Trade

    First oil production

    Production begins in the Stabroek block; within a few years Guyana exceeds 600,000 barrels a day and becomes one of the world's fastest-growing economies.

    See the data

    [13]

  4. May 2026Politics & Power

    ICJ hearings on the merits

    Public hearings on the merits of Arbitral Award of 3 October 1899 (Guyana v. Venezuela) are held at the International Court of Justice, a decisive stage in the long-running Essequibo controversy.

    [10]

Chapter sources: Guyana becomes key contributor to global crude oil supply growth, Guyana operations and project overview, Arbitral Award of 3 October 1899 (Guyana v. Venezuela), Guyana and Belize: Country Studies

Pivotal figures

Cuffy (Kofi)died 1763

Leader of the 1763 Berbice rebellion

Akan-born enslaved man who led the great Berbice rebellion of 1763 against the Dutch, proclaiming himself governor of Berbice. Guyana's first national hero, honoured by the 1763 Monument in Georgetown and on Republic Day.

[1] [11]

Cheddi Jagan1918-1997

Premier and President of Guyana

Founder of the People's Progressive Party and the first popularly elected premier of British Guiana, kept from power for decades during the Cold War before being elected president in 1992; a father of the nation.

[3]

Forbes Burnham1923-1985

First Prime Minister and President of Guyana

Leader of the People's National Congress who took Guyana to independence in 1966, founded the Cooperative Republic, and ruled as the dominant figure of the new nation until his death in 1985.

[4]

Janet Jagan1920-2009

President of Guyana

American-born activist and co-founder of the People's Progressive Party who, after a lifetime in Guyanese politics alongside her husband Cheddi Jagan, was elected president in 1997 — the first woman to lead Guyana and the first U.S.-born woman elected to lead any nation.

[5]

References

Every claim in this chronicle traces to one of the 15 references below.

  1. [1]
    Guyana — History (Colonialism, Independence, Culture)· Encyclopaedia Britannicaencyclopedia
  2. [2]
    Guyana — Independence, Ethnicity, Politics· Encyclopaedia Britannicaencyclopedia
  3. [3]
    Cheddi Jagan· Encyclopaedia Britannicaencyclopedia
  4. [4]
    Forbes Burnham· Encyclopaedia Britannicaencyclopedia
  5. [5]
    Janet Jagan· Encyclopaedia Britannicaencyclopedia
  6. [6]
    Georgetown, Guyana· Encyclopaedia Britannicaencyclopedia
  7. [7]
    Jonestown· Encyclopaedia Britannicaencyclopedia
  8. [8]
    Guyana and Belize: Country Studies· U.S. Library of Congress, Federal Research Divisiongov
  9. [9]
    A Guide to the History of Recognition, Diplomatic, and Consular Relations: Guyana· U.S. Department of State, Office of the Historiangov
  10. [10]
    Arbitral Award of 3 October 1899 (Guyana v. Venezuela)· International Court of Justicegov
  11. [11]
    The 1763 Monument· National Trust of Guyanagov
  12. [12]
    Kaieteur Falls· National Trust of Guyanagov
  13. [13]
    Guyana becomes key contributor to global crude oil supply growth· U.S. Energy Information Administrationgov
  14. [14]
  15. [15]
    Guyana· Wikipediareference