- / * It Was The Lousiana Purchase Tht Happenedd In 1803 ;
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Padri War happened in 1803.
Aligarh Fort happened in 1803.
Capture of Gawilghur happened in 1803.
April 30, 1803 is the date that the negotiators signed the purchase treaty in Paris. The US Senate ratified it on October 20, 1803 and the US formally took possession on December 20, 1803.
Battle of Vertières happened on 1803-11-18.
Battle of Laswari happened on 1803-11-01.
British Expedition to Ceylon happened in 1803.
Battle of Assaye happened on 1803-09-23.
Battle of Aligarh happened on 1803-09-01.
Battle of Tripoli Harbor happened in 1803-10.
Blockade of Saint-Domingue happened on 1803-12-06.
Battle of Delhi happened on 1803-09-11.