1899-1923: |  |  |  | 6th Cholera pandemic from before birth until age 20 |
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1901-1910: |  |  |  | Reign of King Edward VII (Saxe-Coburg) from before birth until age 7 |
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1901-1908: |  |  |  | Theodore Roosevelt president of US from before birth until age 5 |
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1903: |  |  |  | Nikola Tesla patents logic gates at age 0 |
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1903: | |
1904-1905: |  |  |  | Russian-Japanese war from age 1 to age 2 |
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1904: | |
1907: | |
1907: |  |  |  | Oklahoma enters the union - 46th at age 4 |
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1908: |  |  |  | Tunguska atmospheric object explosion at age 5 |
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1909-1912: |  |  |  | William Howard Taft president of US from age 6 to age 9 |
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1909: |  |  |  | Union of South Africa formed at age 6 |
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1909: |  |  |  | North pole reached by Matthew Henson of Robert Peary's exp. at age 6 |
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1910-1936: |  |  |  | Reign of King George V (Windsor) from age 7 to age 33 |
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1910: | |
1910: |  |  |  | Japan annexes Korea at age 7 |
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1911: |  |  |  | South pole reached by Roald Amundsen at age 8 |
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1912: |  |  |  | New Mexico enters the union - 47th at age 9 |
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1912: |  |  |  | Arizona enters the union - 48th at age 9 |
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1912: |  |  |  | Alaska organized as a territory at age 9 |
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1912: | |
1913-1920: |  |  |  | Woodrow Wilson president of US from age 10 to age 17 |
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1914: | |
1914-1919: |  |  |  | World War I from age 11 to age 16 |
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1915: |  |  |  | Einstein's Theory of Relativity at age 12 |
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1916: |  |  |  | Irish Easter Rebellion at age 13 |
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1916: | |
1917: | |
1917: |  |  |  | Russian revolution at age 14 |
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1918-1920: |  |  |  | Flu epidemic - 25 million plus die from age 15 to age 17 |
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1918-1933: |  |  |  | Prohibition from age 15 to age 30 |
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1919: |  |  |  | League of Nations instantiated at age 16 |
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1919: |  |  |  | Shortwave Radio at age 16 |
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1920: |  |  |  | Palestine established at age 17 |
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1920: |  |  |  | Women receive right to vote in USA at age 17 |
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1920-1929: |  |  |  | Roaring 20's from age 17 to age 26 |
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1921-1924: |  |  |  | Warren G Harding president of US from age 18 to age 21 |
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1922: |  |  |  | Insulin made available to diabetics at age 19 |
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1925: |  |  |  | Scopes trial on Evolutionary Theory at age 22 |
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1925-1928: |  |  |  | Calvin Coolidge president of US from age 22 to age 25 |
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1926: |  |  |  | Sound in Movies at age 23 |
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1927: |  |  |  | Holland Tunnel opens (New York City) at age 24 |
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1927: |  |  |  | 1st transAtlantic solo flight - Lindbergh at age 24 |
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1928: |  |  |  | Penicillin discovered by Sir Alexander Fleming at age 25 |
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1928: | |
1928: |  |  |  | Video Recordings at age 25 |
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1928: | |
1929-1939: |  |  |  | Great Depression from age 26 to age 36 |
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1929: |  |  |  | Stock Market Crash at age 26 |
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1929-1932: |  |  |  | Herbert Hoover president of US from age 26 to age 29 |
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1930: |  |  |  | Pluto Discovered at age 27 |
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1931-1933: |  |  |  | Chinese-Japanese war (2) from age 28 to age 30 |
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1933: |  |  |  | Radio Astronomy at age 30 |
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1933: |  |  |  | Armstrong invents FM modulation at age 30 |
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1933-1945: |  |  |  | Franklin D Roosevelt president of US from age 30 to age 42 |
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1933: |  |  |  | Soviet communist party purge at age 30 |
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1934: |  |  |  | Longshoreman's strike - 35,000 on strike for 83 days at age 31 |
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1935-1936: |  |  |  | Abyssinian war from age 32 to age 33 |
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1935: | |
1936: | |
1936: |  |  |  | Reign of King Edward VIII (Windsor) at age 33 |
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1936-1952: |  |  |  | Reign of King George VI (Windsor) from age 33 to age 49 |
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1936: |  |  |  | Spanish Civil War at age 33 |
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1937-1945: |  |  |  | Chinese-Japanese war (3) from age 34 to age 42 |
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1937: |  |  |  | Nylon (by DuPont) at age 34 |
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1938: |  |  |  | Germany annexes Austria at age 35 |
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1939: |  |  |  | Digital Computer at age 36 |
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1939: |  |  |  | Aircraft Jet Engine invented (by Ohain) at age 36 |
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1939-1945: |  |  |  | World War II from age 36 to age 42 |
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1940: |  |  |  | Color Television at age 37 |
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1940: |  |  |  | 1st black general in US army at age 37 |
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1941-1945: |  |  |  | Manhattan Project from age 38 to age 42 |
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1942: |  |  |  | Magnetic Recording Tape at age 39 |
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1942: |  |  |  | Nuclear Reactor at age 39 |
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1945-1952: |  |  |  | Harry S Truman president of US from age 42 to age 49 |
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1945: |  |  |  | US drops the bomb on Hiroshima and Nagasaki at age 42 |
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1945: | |
1945: |  |  |  | United Nations formed at age 42 |
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1946: | |
1946-1989: |  |  |  | The Cold War from age 43 until after line end |
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1947: | |
1947: |  |  |  | UN partitions Palestine to Jewish and Arab sections at age 44 |
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1947: |  |  |  | India and Pakistan emerge from ex-British India at age 44 |
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1948: |  |  |  | Arabs attack Israel on the day it is inaugurated at age 45 |
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1948: | |
1948: |  |  |  | 33 1/3 rpm musical recordings at age 45 |
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1948: |  |  |  | Israel inaugurated as state at age 45 |
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1949: |  |  |  | 45 rpm musical recordings at age 46 |
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1949: |  |  |  | Apartheid policy in South Africa at age 46 |
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1949: |  |  |  | Soviets detonate first nuclear bomb at age 46 |
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1950-1953: |  |  |  | Korean War from age 47 to age 50 |
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1950-1954: |  |  |  | McCarthyism from age 47 to age 51 |
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1950: |  |  |  | Bunche 1st black to win Nobel Peace Prize at age 47 |
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1950: |  |  |  | World pop. est. at 2.4 billion at age 47 |
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1951: |  |  |  | Electricity from Atomic Power at age 48 |
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1952: |  |  |  | 1st Thermonuclear Device Detonated at age 49 |
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1952-2050: |  |  |  | Reign of Queen Elizabeth II (Windsor) from age 49 until after line end |
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1953-1960: |  |  |  | Dwight D Eisenhower president of US from age 50 until after line end |
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1954: |  |  |  | Racial segregation in schools ruled unconstitutional at age 51 |
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1955: |  |  |  | Invention of Velcro at age 52 |
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1955: |  |  |  | Introduction of Salk Polio Vaccine at age 52 |
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1955: |  |  |  | Warsaw pact formed at age 52 |
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1955: |  |  |  | Fiber Optics (by Kapany) at age 52 |
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1956: |  |  |  | Ocean liner Andrea Doria collides with the Stockholm, sinks at age 53 |
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1957: |  |  |  | Sputnik Launched - 1st (artificial) satellite at age 54 |
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1958: |  |  |  | FM Stereo Broadcasts at age 55 |
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1958: |  |  |  | Integrated Circuit at age 55 |
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1958: |  |  |  | US space agency (NASA) established at age 55 |
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1958: |  |  |  | Stereo LP recordings come into usage at age 55 |
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1959: |  |  |  | Hawaii enters the union - 50th at age 56 |
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1959: |  |  |  | 1st nuclear powered merchant vessel, Savannah at age 56 |
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1959: |  |  |  | Alaska enters the union - 49th at age 56 |
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