| 1231-1808: | |  |  |  | Papal Inquisition  from before birth until age 8 | 
 | 
  | 1478-1834: |  | 
  | 1760-1820: | |  |  |  | Reign of King George III (Hanover)  from before birth until age 20 | 
 | 
  | 1792-1815: | |  |  |  | Napoleonic war  from before birth until age 15 | 
 | 
  | 1796-1800: | |  |  |  | John Adams elected 2nd president of US  from before birth until age 0 | 
 | 
  | 1798-1800: | |  |  |  | Undeclared war with France  from before birth until age 0 | 
 | 
  | 1800: | |  |  |  | US capital moves from Philadelphia to Washington DC  at age 0 | 
 | 
  | 1800-1809: | |  |  |  | Thomas Jefferson elected president of US  from age 0 to age  9 | 
 | 
  | 1800: | |  |  |  | Russia annexes Georgia  at age 0 | 
 | 
  | 1800: | |  |  |  | 1st Battery (Volta)  at age 0 | 
 | 
  | 1802: | |  |  |  | Babylonian cuniform deciphered  at age 2 | 
 | 
  | 1803: | |  |  |  | Fulton propels vessel by steampower  at age 3 | 
 | 
  | 1803: | |  |  |  | Louisiana Territory Purchased  at age 3 | 
 | 
  | 1803: | |  |  |  | Ohio enters the union - 17th  at age 3 | 
 | 
  | 1804: | |  |  |  | Haiti independent - 1st black country in West. Hemis.  at age 4 | 
 | 
  | 1804-1806: | |  |  |  | Lewis and Clark Expedition  from age 4 to age  6 | 
 | 
  | 1805: | |  |  |  | Morphine isolated  at age 5 | 
 | 
  | 1805: | |  |  |  | Thomas Jefferson re-elected president of US  at age 5 | 
 | 
  | 1807: | |  |  |  | Robert Fulton makes 1st practical steamboat voyage  at age 7 | 
 | 
  | 1808: | |  |  |  | Import of new slaves into US Is banned  at age 8 | 
 | 
  | 1808: | |  |  |  | Pompeii excavation begins in earnest  at age 8 | 
 | 
  | 1809-1816: | |  |  |  | James Madison elected president of US  from age 9 to age  16 | 
 | 
  | 1809: | |  |  |  | Charles Darwin born  at age 9 | 
 | 
  | 1810: | |  |  |  | Homeopathy founded  at age 10 | 
 | 
  | 1810: | |  |  |  | US pop. reaches 7.2 million  at age 10 | 
 | 
  | 1812: | |  |  |  | Louisiana enters the union - 18th  at age 12 | 
 | 
  | 1812: | |  |  |  | Missouri organized as a territory  at age 12 | 
 | 
  | 1812-1814: | |  |  |  | War of 1812  from age 12 to age  14 | 
 | 
  | 1815: | |  |  |  | Battle of Waterloo  at age 15 | 
 | 
  | 1815: | |  |  |  | French outlaw slavery in France  at age 15 | 
 | 
  | 1815: | |  |  |  | Sumbawa volcano (Indonesia) erupts; 50,000 killed  at age 15 | 
 | 
  | 1816: | |  |  |  | Photographic Negative  at age 16 | 
 | 
  | 1816: |  | 
  | 1816: | |  |  |  | Indiana enters the union - 19th  at age 16 | 
 | 
  | 1817-1823: | |  |  |  | 1st Cholera pandemic  from age 17 to age  23 | 
 | 
  | 1817-1825: | |  |  |  | Erie canal constructed  from age 17 to age  25 | 
 | 
  | 1817: | |  |  |  | Alabama organized as a territory  at age 17 | 
 | 
  | 1817: | |  |  |  | Pentrich Revolution - England's last revolution  at age 17 | 
 | 
  | 1817: | |  |  |  | Mississippi enters the union - 20th  at age 17 | 
 | 
  | 1817-1824: | |  |  |  | James Monroe president of US  from age 17 to age  24 | 
 | 
  | 1818: | |  |  |  | Savannah 1st steamship to cross the Atlantic  at age 18 | 
 | 
  | 1818: | |  |  |  | Illinois enters the union - 21st  at age 18 | 
 | 
  | 1819: | |  |  |  | Alabama enters the union - 22nd  at age 19 | 
 | 
  | 1819: | |  |  |  | Oersted discovers electro-magnetism  at age 19 | 
 | 
  | 1819: | |  |  |  | Arkansas organized as a territory  at age 19 | 
 | 
  | 1820-1830: | |  |  |  | Reign of King George IV (Hanover)  from age 20 to age  30 | 
 | 
  | 1820: | |  |  |  | Maine enters the union - 23rd  at age 20 | 
 | 
  | 1821-1829: | |  |  |  | Greek war of Independence  from age 21 to age  29 | 
 | 
  | 1821: | |  |  |  | Missouri enters the union - 24th  at age 21 | 
 | 
  | 1821: | |  |  |  | US pop. reaches 9.2 million  at age 21 | 
 | 
  | 1821: | |  |  |  | 1st US women's college  at age 21 | 
 | 
  | 1822: | |  |  |  | Florida organized as a territory  at age 22 | 
 | 
  | 1824: | |  |  |  | Erie canal finished  at age 24 | 
 | 
  | 1824: | |  |  |  | Internal Combustion Engine  at age 24 | 
 | 
  | 1824-1828: | |  |  |  | John Quincy Adams president of US  from age 24 to age  28 | 
 | 
  | 1826: | |  |  |  | 1st railroad tunnel (England)  at age 26 | 
 | 
  | 1827: | |  |  |  | Ohms Law formulated  at age 27 | 
 | 
  | 1827: | |  |  |  | Ship's propeller (screw)  at age 27 | 
 | 
  | 1827: | |  |  |  | 1st Black newspaper Freedom's Journal  at age 27 | 
 | 
  | 1828: | |  |  |  | 1st railroad in the US  at age 28 | 
 | 
  | 1828: | |  |  |  | 1st Webster's Dictionary  at age 28 | 
 | 
  | 1828-1836: | |  |  |  | Andrew Jackson president of US  from age 28 to age  36 | 
 | 
  | 1829: | |  |  |  | 1st US patent on a typewriter  at age 29 | 
 | 
  | 1829-1851: | |  |  |  | 2nd Cholera pandemic  from age 29 to age  51 | 
 | 
  | 1830-1837: | |  |  |  | Reign of King William IV (Hanover)  from age 30 to age  37 | 
 | 
  | 1830: | |  |  |  | Mormons (Latter Day Saints) founded  at age 30 | 
 | 
  | 1830-1860: | |  |  |  | Underground railroad leads 100,000+ slaves to freedom in US  from age 30 to age  60 | 
 | 
  | 1832: | |  |  |  | Horse-drawn trolleys in New York  at age 32 | 
 | 
  | 1833: | |  |  |  | Slavery abolished in British Empire (home and colonies)  at age 33 | 
 | 
  | 1833: |  | 
  | 1834: | |  |  |  | Modern computer conceived by Charles Babbage  at age 34 | 
 | 
  | 1835-1842: | |  |  |  | 2nd Seminole War  from age 35 to age  42 | 
 | 
  | 1835: |  | 
  | 1835: | |  |  |  | Mormon leader Joseph Smith prophesies of 'coming of lord' by 1891  at age 35 | 
 | 
  | 1836: | |  |  |  | Arkansas enters the union -25th  at age 36 | 
 | 
  | 1836: | |  |  |  | Battle of the Alamo  at age 36 | 
 | 
  | 1836: | |  |  |  | Texas war for independence from Mexico  at age 36 | 
 | 
  | 1837-1840: | |  |  |  | Martin Van Buren president of US  from age 37 to age  40 | 
 | 
  | 1837: | |  |  |  | Depression and Panic in the US - inflation, speculation  at age 37 | 
 | 
  | 1837-1901: | |  |  |  | Reign of Queen Victoria (Hanover)  from age 37 until after line end | 
 | 
  | 1837: | |  |  |  | Michigan enters the union - 26th  at age 37 | 
 | 
  | 1838-1839: | |  |  |  | Forced relocation of Cherokee  from age 38 to age  39 | 
 | 
  | 1839-1842: | |  |  |  | Opium war between China and the English  from age 39 to age  42 | 
 | 
  | 1841-1844: | |  |  |  | John Tyler president of US  from age 41 to age  44 | 
 | 
  | 1842: | |  |  |  | Chinese cede Hong Kong to the English  at age 42 | 
 | 
  | 1844: | |  |  |  | 1st telegraph line message, Washington to New York  at age 44 | 
 | 
  | 1845-1848: | |  |  |  | James K Polk president of US  from age 45 to age  48 | 
 | 
  | 1845: | |  |  |  | Florida enters the union - 27th  at age 45 | 
 | 
  | 1845-1849: | |  |  |  | Irish Potato Famine  from age 45 to age  49 | 
 | 
  | 1845: | |  |  |  | Texas enters the union - 28th  at age 45 | 
 | 
  | 1846-1848: | |  |  |  | The Mexican-US War  from age 46 to age  48 | 
 | 
  | 1846: | |  |  |  | Iowa enters the union - 29th  at age 46 | 
 | 
  | 1848: | |  |  |  | NY allows women to own real estate  at age 48 | 
 | 
  | 1848: | |  |  |  | Wisconsin enters the union - 30th  at age 48 | 
 | 
  | 1848-1856: | |  |  |  | 1st gold rush in California -- Sutters Mill  from age 48 to age  56 | 
 | 
  | 1848: | |  |  |  | Oregon organized as a territory  at age 48 | 
 | 
  | 1849: | |  |  |  | Fizeau measures speed of light  at age 49 | 
 | 
  | 1849-1852: | |  |  |  | Zachary Taylor president of the US  from age 49 to age  52 | 
 | 
  | 1850: | |  |  |  | World pop. est. at 1.1 billion  at age 50 | 
 | 
  | 1850: | |  |  |  | US pop reaches 23 million  at age 50 | 
 | 
  | 1850: | |  |  |  | California enters the union - 31st  at age 50 | 
 | 
  | 1850: | |  |  |  | Utah (included Nevada) organized as a territory  at age 50 | 
 | 
  | 1850: | |  |  |  | New Mexico organized as a territory  at age 50 | 
 | 
  | 1851: | |  |  |  | Gold rush in Australia  at age 51 | 
 | 
  | 1852-1859: | |  |  |  | 3rd Cholera pandemic  from age 52 to age  59 | 
 | 
  | 1853: | |  |  |  | Washington (included pt. of Idaho) organized as a territory  at age 53 | 
 | 
  | 1853-1856: | |  |  |  | Franklin Pierce president of US  from age 53 to age  56 | 
 | 
  | 1854-1856: | |  |  |  | Crimean War  from age 54 to age  56 | 
 | 
  | 1854: | |  |  |  | Nebraska organized as a territory  at age 54 | 
 | 
  | 1854: | |  |  |  | Kansas  organized as a territory  at age 54 | 
 | 
  | 1857-1860: | |  |  |  | James Buchanan president of US  from age 57 to age  60 | 
 | 
  | 1857-1866: | |  |  |  | Transatlantic cable laid  from age 57 until after line end | 
 | 
  | 1857: | |  |  |  | Dred Scott decision: Blacks could not be US citizens  at age 57 | 
 | 
  | 1858: | |  |  |  | India bill transfers government of India to England  at age 58 | 
 | 
  | 1858: | |  |  |  | Minnesota enters the union - 32nd  at age 58 | 
 | 
  | 1859: | |  |  |  | Darwin pub. Origin Of Species  at age 59 | 
 | 
  | 1859: | |  |  |  | Oregon enters the union - 33rd  at age 59 | 
 | 
  | 1859: |  | 
  | 1860: | |  |  |  | Rifled barrel invented  at age 60 | 
 | 
  | 1860: | |  |  |  | South Carolina Secedes from the Union  at age 60 | 
 |