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1843
| 1843 • The first major wagon train headed for the American Northwest sets out with one thousand pioneers from Elm Grove, Missouri on the Oregon Trail. |
1864
Nov 30
Age: 22y
marriageJohn Van Deusen Philadelphia, Pennsylvania, USA ⇓ 1 Source ⇓ |
| 1864 • An undeclared Uruguayan War begins when Uruguay refuses an ultimatum from the Empire of Brazil. |
1871
Mar 2
Age: 28y
| 1871 • George Biddell Airy discovers that astronomical aberration is independent of the local medium. |