| 1478-1834: |  | 
  | 1760-1820: | |  |  |  | Reign of King George III (Hanover)  from before birth until age 8 | 
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  | 1792-1815: | |  |  |  | Napoleonic war  from before birth until age 3 | 
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  | 1809-1816: | |  |  |  | James Madison elected president of US  from before birth until age 4 | 
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  | 1812-1814: | |  |  |  | War of 1812  from age 0 to age  2 | 
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  | 1812: | |  |  |  | Missouri organized as a territory  at age 0 | 
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  | 1812: | |  |  |  | Louisiana enters the union - 18th  at age 0 | 
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  | 1815: | |  |  |  | Battle of Waterloo  at age 3 | 
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  | 1815: | |  |  |  | Sumbawa volcano (Indonesia) erupts; 50,000 killed  at age 3 | 
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  | 1815: | |  |  |  | French outlaw slavery in France  at age 3 | 
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  | 1816: |  | 
  | 1816: | |  |  |  | Photographic Negative  at age 4 | 
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  | 1816: | |  |  |  | Indiana enters the union - 19th  at age 4 | 
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  | 1817-1824: | |  |  |  | James Monroe president of US  from age 5 to age  12 | 
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  | 1817: | |  |  |  | Pentrich Revolution - England's last revolution  at age 5 | 
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  | 1817-1823: | |  |  |  | 1st Cholera pandemic  from age 5 to age  11 | 
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  | 1817: | |  |  |  | Mississippi enters the union - 20th  at age 5 | 
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  | 1817: | |  |  |  | Alabama organized as a territory  at age 5 | 
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  | 1817-1825: | |  |  |  | Erie canal constructed  from age 5 to age  13 | 
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  | 1818: | |  |  |  | Illinois enters the union - 21st  at age 6 | 
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  | 1818: | |  |  |  | Savannah 1st steamship to cross the Atlantic  at age 6 | 
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  | 1819: | |  |  |  | Arkansas organized as a territory  at age 7 | 
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  | 1819: | |  |  |  | Alabama enters the union - 22nd  at age 7 | 
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  | 1819: | |  |  |  | Oersted discovers electro-magnetism  at age 7 | 
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  | 1820-1830: | |  |  |  | Reign of King George IV (Hanover)  from age 8 until after line end | 
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  | 1820: | |  |  |  | Maine enters the union - 23rd  at age 8 | 
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  | 1821-1829: | |  |  |  | Greek war of Independence  from age 9 until after line end | 
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  | 1821: | |  |  |  | US pop. reaches 9.2 million  at age 9 | 
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  | 1821: | |  |  |  | Missouri enters the union - 24th  at age 9 | 
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  | 1821: | |  |  |  | 1st US women's college  at age 9 | 
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  | 1822: | |  |  |  | Florida organized as a territory  at age 10 | 
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  | 1824: | |  |  |  | Internal Combustion Engine  at age 12 | 
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  | 1824-1828: | |  |  |  | John Quincy Adams president of US  from age 12 to age  16 | 
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  | 1824: | |  |  |  | Erie canal finished  at age 12 | 
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  | 1826: | |  |  |  | 1st railroad tunnel (England)  at age 14 | 
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  | 1827: | |  |  |  | Ohms Law formulated  at age 15 | 
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  | 1827: | |  |  |  | 1st Black newspaper Freedom's Journal  at age 15 | 
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  | 1827: | |  |  |  | Ship's propeller (screw)  at age 15 | 
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  | 1828-1836: | |  |  |  | Andrew Jackson president of US  from age 16 until after line end | 
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  | 1828: | |  |  |  | 1st Webster's Dictionary  at age 16 | 
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  | 1828: | |  |  |  | 1st railroad in the US  at age 16 | 
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