What two events start and end a century?

1801: 1815: the First Barbary War and the Second Barbary War between the United States and the Barbary States of North Africa. 1802: Treaty of Amiens between France and the United Kingdom ends the War of the Second Coalition. 1802: Ludwig van Beethoven performs his Moonlight Sonata for the first time.

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the federalist party which advocated strong centralization dominated the united states government till 1800. so 1800 election transformed the power from one party to another party for the first time and was thus a turning point in american history. so jefferson called it "revolution of 1800".

explanation:

united states reinforcements contributed greatly to three allied victories in france at: cantigny (first major american battle), argonne (the largest in the united states military history, involving 1.2 million american soldiers), and château-thierry (one of the first actions under general pershing).