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Births on October 11

Gregor von Helmersen
1803Oct, 11

Gregor von Helmersen

Gregor von Helmersen, Estonian-Russian general and geologist (d. 1885)
Gregor von Helmersen (11 October [O.S. 29 September] 1803 – 15 February [O.S. 3 February] 1885) was a Baltic German geologist.

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Events on 1803

  • 23Sep

    Battle of Assaye

    Second Anglo-Maratha War: Battle of Assaye between the British East India Company and the Maratha Empire in India.
  • 20Oct

    Louisiana Purchase

    The United States Senate ratifies the Louisiana Purchase.