| 1231-1808: |  | | | Papal Inquisition from before birth until age 25 |
|
| 1478-1834: | |
| 1760-1820: | | | | Reign of King George III (Hanover) from before birth until age 37 |
|
| 1775-1783: | | | | American Revolutionary War against the British from before birth until age 0 |
|
| 1783: | | | | 1st working hot air balloon at age 0 |
|
| 1784: | | | | Thomas Jefferson's proposal to ban slavery defeated at age 1 |
|
| 1786: | | | | The Dollar is adopted at age 3 |
|
| 1786: | | | | First attempts at indoor lighting with gas (UK, Germany) at age 3 |
|
| 1787: | | | | Delaware enters the union - 1st at age 4 |
|
| 1787: | | | | Pennsylvania enters the union - 2nd at age 4 |
|
| 1787: | | | | New Jersey enters the union - 3rd at age 4 |
|
| 1787: | | | | Constitution is approved by the constitutional congress at age 4 |
|
| 1788: | | | | New York enters the union - 11th at age 5 |
|
| 1788: | | | | Massachusetts enters the union - 6th at age 5 |
|
| 1788: | | | | Maryland enters the union - 7th at age 5 |
|
| 1788: | | | | South Carolina enters the union - 8th at age 5 |
|
| 1788: | | | | New Hampshire enters the union - 9th at age 5 |
|
| 1788: | | | | Virginia enters the union - 10th at age 5 |
|
| 1788: | | | | Connecticut enters the union - 5th at age 5 |
|
| 1788: | | | | Constitution goes into effect at age 5 |
|
| 1788: | | | | Georgia enters the union - 4th at age 5 |
|
| 1789-1796: | | | | George Washington selected 1st President from age 6 to age 13 |
|
| 1789: | | | | North Carolina enters the union - 12th at age 6 |
|
| 1789: | | | | US Army Established at age 6 |
|
| 1790: | | | | Rhode Island enters the union - 13th at age 7 |
|
| 1790: | | | | 1st official US census at age 7 |
|
| 1790: | | | | Coast Guard Established at age 7 |
|
| 1791: | | | | Vermont enters the union -14th at age 8 |
|
| 1791: | | | | Federal Bill of rights adopted at age 8 |
|
| 1792: | | | | Denmark 1st to forbid trade in slaves at age 9 |
|
| 1792-1815: | | | | Napoleonic war from age 9 to age 32 |
|
| 1792: | | | | Kentucky enters the union - 15th at age 9 |
|
| 1793: | | | | Marie Antoinette beheaded at age 10 |
|
| 1793: | | | | Eli Whitney invents Cotton Gin (increases need for slaves) at age 10 |
|
| 1794: | | | | US Post Office Established at age 11 |
|
| 1794: | | | | Slavery abolished in French colonies at age 11 |
|
| 1794: | | | | US Navy Established at age 11 |
|
| 1796: | | | | France's presses get right of free speech at age 13 |
|
| 1796: | | | | Tennesee enters the union - 16th at age 13 |
|
| 1796-1800: | | | | John Adams elected 2nd president of US from age 13 to age 17 |
|
| 1796: | | | | Vaccination against Smallpox at age 13 |
|
| 1798: | | | | US Marine Corps Established at age 15 |
|
| 1798: | |
| 1798: | | | | Mississippi organized as a territory at age 15 |
|
| 1798-1800: | | | | Undeclared war with France from age 15 to age 17 |
|
| 1799: | | | | Rosetta Stone found at age 16 |
|
| 1800: | | | | Russia annexes Georgia at age 17 |
|
| 1800-1809: | | | | Thomas Jefferson elected president of US from age 17 to age 26 |
|
| 1800: | | | | 1st Battery (Volta) at age 17 |
|
| 1800: | | | | US capital moves from Philadelphia to Washington DC at age 17 |
|
| 1802: | | | | Babylonian cuniform deciphered at age 19 |
|
| 1803: | | | | Ohio enters the union - 17th at age 20 |
|
| 1803: | | | | Louisiana Territory Purchased at age 20 |
|
| 1803: | | | | Fulton propels vessel by steampower at age 20 |
|
| 1804: | | | | Haiti independent - 1st black country in West. Hemis. at age 21 |
|
| 1804-1806: | | | | Lewis and Clark Expedition from age 21 to age 23 |
|
| 1805: | | | | Morphine isolated at age 22 |
|
| 1805: | | | | Thomas Jefferson re-elected president of US at age 22 |
|
| 1807: | | | | Robert Fulton makes 1st practical steamboat voyage at age 24 |
|
| 1808: | | | | Pompeii excavation begins in earnest at age 25 |
|
| 1808: | | | | Import of new slaves into US Is banned at age 25 |
|
| 1809: | | | | Charles Darwin born at age 26 |
|
| 1809-1816: | | | | James Madison elected president of US from age 26 to age 33 |
|
| 1810: | | | | US pop. reaches 7.2 million at age 27 |
|
| 1810: | | | | Homeopathy founded at age 27 |
|
| 1812-1814: | | | | War of 1812 from age 29 to age 31 |
|
| 1812: | | | | Louisiana enters the union - 18th at age 29 |
|
| 1812: | | | | Missouri organized as a territory at age 29 |
|
| 1815: | | | | Battle of Waterloo at age 32 |
|
| 1815: | | | | Sumbawa volcano (Indonesia) erupts; 50,000 killed at age 32 |
|
| 1815: | | | | French outlaw slavery in France at age 32 |
|
| 1816: | |
| 1816: | | | | Photographic Negative at age 33 |
|
| 1816: | | | | Indiana enters the union - 19th at age 33 |
|
| 1817: | | | | Mississippi enters the union - 20th at age 34 |
|
| 1817: | | | | Alabama organized as a territory at age 34 |
|
| 1817-1825: | | | | Erie canal constructed from age 34 until after line end |
|
| 1817-1824: | | | | James Monroe president of US from age 34 until after line end |
|
| 1817-1823: | | | | 1st Cholera pandemic from age 34 to age 40 |
|
| 1817: | | | | Pentrich Revolution - England's last revolution at age 34 |
|
| 1818: | | | | Illinois enters the union - 21st at age 35 |
|
| 1818: | | | | Savannah 1st steamship to cross the Atlantic at age 35 |
|
| 1819: | | | | Oersted discovers electro-magnetism at age 36 |
|
| 1819: | | | | Arkansas organized as a territory at age 36 |
|
| 1819: | | | | Alabama enters the union - 22nd at age 36 |
|
| 1820: | | | | Maine enters the union - 23rd at age 37 |
|
| 1820-1830: | | | | Reign of King George IV (Hanover) from age 37 until after line end |
|
| 1821: | | | | 1st US women's college at age 38 |
|
| 1821-1829: | | | | Greek war of Independence from age 38 until after line end |
|
| 1821: | | | | Missouri enters the union - 24th at age 38 |
|
| 1821: | | | | US pop. reaches 9.2 million at age 38 |
|
| 1822: | | | | Florida organized as a territory at age 39 |
|
