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Date |
Event(s) |
| 1 | 1910 | - 6 May 1910—20 Jan 1936: Reign of George V
King of the United Kingdom and the British Dominions, and Emperor of India
- 31 May 1910—31 May 1961: Union of South Africa
The Union of South Africa came into being with the unification of the Cape Colony, the Natal Colony, the Transvaal, and the Orange River Colony. It included the territories that were formerly a part of the South African Republic (1852 to 1902) and the Orange Free State (1854-1902).
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| 2 | 1913 | - 4 Mar 1913—4 Mar 1921: Presidency of Woodrow Wilson
28th President of the USA
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| 3 | 1917 | - 8 Mar 1917—16 Jun 1923: Russian Revolution
The Russian Revolution was a period of political and social revolution across the territory of the Russian Empire, commencing with the abolition of the monarchy in 1917 and concluding in 1922 with the Bolshevik establishment of the Soviet Union at the end of the Civil War.
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| 4 | 1918 | - Feb 1918—Apr 1920: Spanish Flu
The Spanish flu, also known as the 1918 influenza pandemic, was an unusually deadly influenza pandemic, infecting 500 million people – about a third of the world's population at the time – in four successive waves. The death toll is typically estimated to have been somewhere between 20 million and 50 million, making it one of the most deadliest pandemics in world history.
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| 5 | 1919 | - 21 Jan 1919—11 Jul 1921: Irish War of Independence
The Irish War of Independence or Anglo-Irish War was a guerrilla war fought in Ireland from 1919 to 1921 between the Irish Republican Army (IRA) and British forces. As a result, in April 1921 the island was partitioned into Southern and Northern Ireland.
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| 6 | 1921 | - 4 Mar 1921—2 Aug 1923: Presidency of Warren G. Harding
29th President of the USA
- 3 May 1921: Partition of Ireland
The partition of Ireland was the process by which the Government of the United Kingdom of Great Britain and Ireland divided Ireland into two self-governing polities: Northern Ireland and Southern Ireland. The Government of Ireland Act 1920, intended for both home rule territories to remain within the United Kingdom and contained provisions for their eventual reunification. Following the Anglo-Irish Treaty, the territory of Southern Ireland left the UK and became the Irish Free State, now the Republic of Ireland.
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| 7 | 1923 | - 2 Aug 1923—4 Mar 1929: Presidency of Calvin Coolidge
30th President of the USA
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| 8 | 1927 | - 12 Apr 1927: Royal and Parliamentary Titles Act 1927
The United Kingdom of Great Britain and Ireland continued in name until 1927 when it was renamed the United Kingdom of Great Britain and Northern Ireland.
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| 9 | 1929 | - 4 Mar 1929—4 Mar 1933: Presidency of Herbert Hoover
31st President of the USA
- 24 Oct 1929: Stock Market Crash
The collapse of the American stock market begins the Great Depression, which ravages the economy during the “Dirty Thirties.”
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| 10 | 1933 | - 4 Mar 1933—12 Apr 1945: Presidency of Franklin D. Roosevelt
32nd President of the USA
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| 11 | 1936 | - 20 Jan 1936—11 Dec 1936: Reign of Edward VIII
King of the United Kingdom and the Dominions of the British Empire, and Emperor of India
- 17 Jul 1936—1 Apr 1939: Spanish Civil War
The Spanish Civil War was republicans and left-leaning government of the Second Spanish Republic against a revolt by the Nationalists, monarchists, conservatives and traditionalists.
- 11 Dec 1936—6 Feb 1952: Reign of George VI
King of the United Kingdom of Great Britain and Northern Ireland and Emperor of India
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| 12 | 1939 | - 1939—1945: World War II
WWII
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| 13 | 1945 | - 12 Apr 1945—20 Jun 1953: Presidency of Harry S. Truman
33rd President of the USA
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| 14 | 1950 | - 25 Jun 1950—27 Jul 1953: Korean War
The Korean War was between North Korea (with the support of China and the Soviet Union) and South Korea (with the support of the United Nations, principally from the United States). The war began when North Korea invaded South Korea following clashes along the border and insurrections in the south. The war ended unofficially in an armistice.
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| 15 | 1952 | - 6 Feb 1952—8 Sep 2022: Reign of Elizabeth II
Elizabeth II, by the Grace of God, of the United Kingdom of Great Britain and Northern Ireland and of her other realms and territories Queen, Head of the Commonwealth, Defender of the Faith
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| 16 | 1953 | - 20 Jun 1953—20 Jan 1961: Presidency of Dwight D. Eisenhower
34th President of the USA
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| 17 | 1955 | - 1 Nov 1955—30 Apr 1975: Vietnam War
The Vietnam War was a conflict in Vietnam, Laos, and Cambodia, officially fought between North Vietnam and South Vietnam. North Vietnam was supported by the Soviet Union, China, and other communist allies; South Vietnam was supported by the United States, South Korea, the Philippines, Australia, Thailand, and other anti-communist allies. It included the Laotian Civil War and the Cambodian Civil War, which ended with all three countries becoming communist in 1975.
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| 18 | 1961 | - 20 Jan 1961—20 Nov 1963: Presidency of John F. Kennedy
35th President of the USA
- 31 May 1961: Republic of South Africa
South Africa became a republic following a referendum (only open to white voters) which narrowly passed; the British-dominated Natal province largely voted against the proposal.
- 13 Aug 1961—9 Nov 1989: Berlin Wall
The Berlin Wall was a guarded concrete barrier that physically and ideologically divided Berlin in Germany. Construction of the wall was commenced by the German Democratic Republic (GDR, East Germany) and cut off West Berlin from surrounding East Germany, including East Berlin.
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| 19 | 1963 | - 22 Nov 1963—20 Jan 1969: Presidency of Lyndon B. Johnson
36th President of the USA
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| 20 | 1968 | - 1968—1998: The Troubles of Northern Ireland
The Troubles was an ethno-nationalist period of conflict that lasted about 30 years, beginning in the late 1960s and is usually deemed to have ended with the Good Friday Agreement of 1998. Although the Troubles mostly took place in Northern Ireland, at times the violence spilled over into parts of the Republic of Ireland, England, and mainland Europe.
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| 21 | 1969 | - 20 Jan 1969—9 Aug 1974: Presidency of Richard Nixon
37th President of the USA
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| 22 | 1974 | - 9 Aug 1974—20 Jan 1977: Presidency of Gerald Ford
38th President of the USA
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| 23 | 1977 | - 20 Jan 1977—20 Jan 1981: Presidency of Jimmy Carter
39th President of the USA
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| 24 | 1981 | - 20 Jan 1981—20 Jan 1989: Presidency of Ronald Reagan
40th President of the USA
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| 25 | 1989 | - 20 Jan 1989—20 Jan 1993: Presidency of George H. W. Bush
41st President of the USA
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| 26 | 1993 | - 20 Jan 1993—20 Jan 2001: Presidency of Bill Clinton
42nd President of the USA
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1920 - 1996 (76 years)