| 1837-1901: | |  |  |  | Reign of Queen Victoria (Hanover)  from before birth until age 35 | 
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  | 1857-1866: | |  |  |  | Transatlantic cable laid  from before birth until age 0 | 
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  | 1863-1879: | |  |  |  | 4th Cholera pandemic  from before birth until age 13 | 
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  | 1866-1868: | |  |  |  | Andrew Johnson president of US  from age 0 to age  2 | 
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  | 1866: | |  |  |  | Walker, Mitchell 1st elected US black officials (Massachusetts)  at age 0 | 
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  | 1867: | |  |  |  | Confederation of Canada  at age 1 | 
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  | 1867: | |  |  |  | Diamonds discovered in South Africa  at age 1 | 
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  | 1867: | |  |  |  | Alaska purchased from Russia  at age 1 | 
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  | 1867: | |  |  |  | Nebraska enters the union - 37th  at age 1 | 
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  | 1867: |  | 
  | 1868-1878: | |  |  |  | War between Cuba and Spain  from age 2 to age  12 | 
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  | 1869-1876: | |  |  |  | Ulysses S Grant president of US  from age 3 to age  10 | 
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  | 1869: | |  |  |  | Suez canal opened  at age 3 | 
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  | 1869: | |  |  |  | Financial black friday caused by attempt to corner gold  at age 3 | 
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  | 1869: | |  |  |  | Cutty Sark built  at age 3 | 
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  | 1869: | |  |  |  | Trans-continental railroad completed  at age 3 | 
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  | 1870-1871: | |  |  |  | Franco-Prussian war  from age 4 to age  5 | 
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  | 1870: | |  |  |  | 1st black US senator (Hiram Revels)  at age 4 | 
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  | 1870: | |  |  |  | US black men can vote  at age 4 | 
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  | 1871: | |  |  |  | Great Fire destroys Chicago  at age 5 | 
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  | 1873: | |  |  |  | Color Photographs  at age 7 | 
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  | 1873-1878: | |  |  |  | Depression, banks fail  from age 7 to age  12 | 
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  | 1876: | |  |  |  | American Centennial  at age 10 | 
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  | 1876: | |  |  |  | Little Big Horn - Battle  at age 10 | 
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  | 1876: | |  |  |  | Colorado enters the union - 38th  at age 10 | 
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  | 1876: | |  |  |  | Telephone (Bell, Latimer)  at age 10 | 
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  | 1877: | |  |  |  | Wax Cylinder Musical Recordings  at age 11 | 
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  | 1877-1880: | |  |  |  | Ruthorford B Hayes president of US  from age 11 to age  14 | 
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  | 1878: | |  |  |  | 1st commercial telephone exchange in US  at age 12 | 
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  | 1879: | |  |  |  | Electric Light Bulb (Edison)  at age 13 | 
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  | 1879: |  | 
  | 1881: | |  |  |  | President Garfield assassinated (dies of med. care)  at age 15 | 
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  | 1881: | |  |  |  | James A Garfield president of US  at age 15 | 
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  | 1881-1885: | |  |  |  | Chester Arthur president of US  from age 15 to age  19 | 
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  | 1881-1896: | |  |  |  | 5th Cholera pandemic  from age 15 to age  30 | 
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  | 1884: |  | 
  | 1884: |  | 
  | 1885: |  | 
  | 1885-1888: | |  |  |  | Grover Cleveland president of US  from age 19 to age  22 | 
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  | 1886: | |  |  |  | Induction Telegraph (Grandville T. Woods)  at age 20 | 
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  | 1887: | |  |  |  | X-Rays (Tesla, not Rontgen!)  at age 21 | 
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  | 1888: | |  |  |  | 70...77 rpm musical records  at age 22 | 
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  | 1888: | |  |  |  | Great Blizzard of 1888 - 400+ deaths  at age 22 | 
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  | 1889: | |  |  |  | Washington enters the union - 42nd  at age 23 | 
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  | 1889: | |  |  |  | North Dakota enters the union - 39th  at age 23 | 
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  | 1889: | |  |  |  | South Dakota enters the union - 40th  at age 23 | 
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  | 1889-1892: | |  |  |  | Benjamin Harrison president of US  from age 23 to age  26 | 
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  | 1889: | |  |  |  | Montana enters the union - 41st  at age 23 | 
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  | 1889: | |  |  |  | Holerith invents the punch card  at age 23 | 
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  | 1890: | |  |  |  | Wyoming enters the union - 44th  at age 24 | 
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  | 1890: | |  |  |  | Battle of Wounded Knee  at age 24 | 
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  | 1890: | |  |  |  | Oklahoma organized as a territory  at age 24 | 
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  | 1890: | |  |  |  | Idaho enters the union - 43rd  at age 24 | 
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  | 1891: | |  |  |  | Mormon prophesy of 'coming of lord' by 1891 unfulfilled  at age 25 | 
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  | 1893-1897: | |  |  |  | US Financial panic, depression  from age 27 to age  31 | 
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  | 1893: |  | 
  | 1893: | |  |  |  | New Zealand is 1st to grant women right to vote  at age 27 | 
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  | 1893-1896: | |  |  |  | Grover Cleveland president of US  from age 27 to age  30 | 
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  | 1893: | |  |  |  | Nikola Tesla invents Radio (not Marconi!)  at age 27 | 
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  | 1894: | |  |  |  | Plague in Hong Kong and China - 1 million die  at age 28 | 
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  | 1894-1895: | |  |  |  | Chinese-Japanese war (1)  from age 28 to age  29 | 
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  | 1896: | |  |  |  | Utah enters the union - 45th  at age 30 | 
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  | 1896: | |  |  |  | Supreme court approves separate but equal segregation  at age 30 | 
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  | 1897-1901: | |  |  |  | William McKinley president of US  from age 31 to age  35 | 
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  | 1898: | |  |  |  | Spanish American 1-year war  at age 32 | 
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  | 1899-1902: | |  |  |  | Boer war  from age 33 to age  36 | 
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  | 1899-1923: | |  |  |  | 6th Cholera pandemic  from age 33 to age  57 | 
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  | 1900: | |  |  |  | Boxer rebellion in China  at age 34 | 
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  | 1900: | |  |  |  | Galveston Hurricane - 8,000 killed  at age 34 | 
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  | 1900: | |  |  |  | Hawaii organized as a territory  at age 34 | 
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  | 1901-1908: | |  |  |  | Theodore Roosevelt president of US  from age 35 to age  42 | 
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  | 1901: | |  |  |  | Oil discovered in Texas in significant amounts  at age 35 | 
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  | 1901: | |  |  |  | Commonwealth of Australia founded  at age 35 | 
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  | 1901: | |  |  |  | First British submarine launched  at age 35 | 
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  | 1901: | |  |  |  | Third law of thermodynamics postulated (W. H. Nernst)  at age 35 | 
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  | 1901: | |  |  |  | Max Planck formulates the Laws of Radiation  at age 35 | 
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  | 1901-1910: | |  |  |  | Reign of King Edward VII (Saxe-Coburg)  from age 35 to age  44 | 
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  | 1901: | |  |  |  | US President William McKinley assassinated  at age 35 | 
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  | 1903: |  | 
  | 1903: | |  |  |  | Nikola Tesla patents logic gates  at age 37 | 
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  | 1904-1905: | |  |  |  | Russian-Japanese war  from age 38 to age  39 | 
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  | 1904: |  | 
  | 1907: |  | 
  | 1907: | |  |  |  | Oklahoma enters the union - 46th  at age 41 | 
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  | 1908: | |  |  |  | Tunguska atmospheric object explosion  at age 42 | 
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  | 1909: | |  |  |  | North pole reached by Matthew Henson of Robert Peary's exp.  at age 43 | 
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  | 1909: | |  |  |  | Union of South Africa formed  at age 43 | 
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  | 1909-1912: | |  |  |  | William Howard Taft president of US  from age 43 to age  46 | 
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  | 1910: | |  |  |  | Japan annexes Korea  at age 44 | 
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  | 1910: |  | 
  | 1910-1936: | |  |  |  | Reign of King George V (Windsor)  from age 44 until after line end | 
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  | 1911: | |  |  |  | South pole reached by Roald Amundsen  at age 45 | 
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  | 1912: |  | 
  | 1912: | |  |  |  | New Mexico enters the union - 47th  at age 46 | 
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  | 1912: | |  |  |  | Alaska organized as a territory  at age 46 | 
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  | 1912: | |  |  |  | Arizona enters the union - 48th  at age 46 | 
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  | 1913-1920: | |  |  |  | Woodrow Wilson president of US  from age 47 to age  54 | 
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  | 1914: |  | 
  | 1914-1919: | |  |  |  | World War I  from age 48 to age  53 | 
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  | 1915: | |  |  |  | Einstein's Theory of Relativity  at age 49 | 
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  | 1916: | |  |  |  | Irish Easter Rebellion  at age 50 | 
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  | 1916: |  | 
  | 1917: | |  |  |  | Russian revolution  at age 51 | 
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  | 1917: |  | 
  | 1918-1933: | |  |  |  | Prohibition  from age 52 to age  67 | 
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  | 1918-1920: | |  |  |  | Flu epidemic - 25 million plus die  from age 52 to age  54 | 
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  | 1919: | |  |  |  | Shortwave Radio  at age 53 | 
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  | 1919: | |  |  |  | League of Nations instantiated  at age 53 | 
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  | 1920-1929: | |  |  |  | Roaring 20's  from age 54 to age  63 | 
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  | 1920: | |  |  |  | Women receive right to vote in USA  at age 54 | 
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  | 1920: | |  |  |  | Palestine established  at age 54 | 
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  | 1921-1924: | |  |  |  | Warren G Harding president of US  from age 55 to age  58 | 
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  | 1922: | |  |  |  | Insulin made available to diabetics  at age 56 | 
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  | 1925: | |  |  |  | Scopes trial on Evolutionary Theory  at age 59 | 
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  | 1925-1928: | |  |  |  | Calvin Coolidge president of US  from age 59 to age  62 | 
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  | 1926: | |  |  |  | Sound in Movies  at age 60 | 
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  | 1927: | |  |  |  | Holland Tunnel opens (New York City)  at age 61 | 
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  | 1927: | |  |  |  | 1st transAtlantic solo flight - Lindbergh  at age 61 | 
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  | 1928: | |  |  |  | Penicillin discovered  by Sir Alexander Fleming  at age 62 | 
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  | 1928: |  | 
  | 1928: | |  |  |  | Video Recordings  at age 62 | 
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  | 1928: |  | 
  | 1929-1932: | |  |  |  | Herbert Hoover president of US  from age 63 to age  66 | 
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  | 1929-1939: | |  |  |  | Great Depression  from age 63 until after line end | 
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  | 1929: | |  |  |  | Stock Market Crash  at age 63 | 
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  | 1930: | |  |  |  | Pluto Discovered  at age 64 | 
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  | 1931-1933: | |  |  |  | Chinese-Japanese war (2)  from age 65 to age  67 | 
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  | 1933: | |  |  |  | Armstrong invents FM modulation  at age 67 | 
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  | 1933: | |  |  |  | Soviet communist party purge  at age 67 | 
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  | 1933-1945: | |  |  |  | Franklin D Roosevelt president of US  from age 67 until after line end | 
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  | 1933: | |  |  |  | Radio Astronomy  at age 67 | 
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  | 1934: | |  |  |  | Longshoreman's strike - 35,000 on strike for 83 days  at age 68 | 
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