| 1231-1808: |  | | | Papal Inquisition from before birth until after line end |
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| 1478-1834: | |
| 1760-1820: | | | | Reign of King George III (Hanover) from before birth until after line end |
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| 1769: | | | | San Francisco bay discovered at age 3 |
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| 1770: | | | | Boston Massacre - 5 people killed when British fire on mob at age 4 |
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| 1772-1775: | | | | Antarctica circumnavigated by James Cook from age 6 to age 9 |
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| 1772: | | | | Judge Murray decrees that slaves are free on landing in England at age 6 |
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| 1773: | | | | Boston Tea Party at age 7 |
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| 1774: | | | | 1st Continental Congress meets at age 8 |
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| 1775-1783: | | | | American Revolutionary War against the British from age 9 to age 17 |
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| 1775-1782: | | | | British war in India from age 9 to age 16 |
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| 1776: | | | | Declaration of Independence at age 10 |
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| 1778: | | | | Congress forbids import of slaves into America at age 12 |
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| 1778: | | | | France joins war against Britan at age 12 |
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| 1780: | | | | Benjamin Franklin discovers lightning is electricity at age 14 |
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| 1781: | | | | Uranus discovered at age 15 |
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| 1783: | | | | 1st working hot air balloon at age 17 |
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| 1784: | | | | Thomas Jefferson's proposal to ban slavery defeated at age 18 |
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| 1786: | | | | The Dollar is adopted at age 20 |
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| 1786: | | | | First attempts at indoor lighting with gas (UK, Germany) at age 20 |
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| 1787: | | | | Pennsylvania enters the union - 2nd at age 21 |
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| 1787: | | | | New Jersey enters the union - 3rd at age 21 |
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| 1787: | | | | Constitution is approved by the constitutional congress at age 21 |
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| 1787: | | | | Delaware enters the union - 1st at age 21 |
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| 1788: | | | | New Hampshire enters the union - 9th at age 22 |
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| 1788: | | | | Constitution goes into effect at age 22 |
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| 1788: | | | | Virginia enters the union - 10th at age 22 |
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| 1788: | | | | South Carolina enters the union - 8th at age 22 |
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| 1788: | | | | Maryland enters the union - 7th at age 22 |
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| 1788: | | | | Massachusetts enters the union - 6th at age 22 |
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| 1788: | | | | Connecticut enters the union - 5th at age 22 |
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| 1788: | | | | Georgia enters the union - 4th at age 22 |
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| 1788: | | | | New York enters the union - 11th at age 22 |
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| 1789: | | | | North Carolina enters the union - 12th at age 23 |
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| 1789: | | | | US Army Established at age 23 |
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| 1789-1796: | | | | George Washington selected 1st President from age 23 until after line end |
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| 1790: | | | | Coast Guard Established at age 24 |
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| 1790: | | | | Rhode Island enters the union - 13th at age 24 |
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| 1790: | | | | 1st official US census at age 24 |
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| 1791: | | | | Federal Bill of rights adopted at age 25 |
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| 1791: | | | | Vermont enters the union -14th at age 25 |
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