1800 United States presidential election

Presidential elections were held in the United States from October 31 to December 3, 1800. In what is sometimes called the "Revolution of 1800", the Democratic-Republican Party candidate, Vice President Thomas Jefferson, defeated the Federalist Party candidate and incumbent, President John Adams in the first peaceful transfer of power in the history of the United States, creating a political realignment that ushered in a generation of Democratic-Republican leadership.

Source: Wikipedia — 1800 United States presidential election (CC BY-SA 4.0)