Why is the election of 1800 sometimes called the revolution of 1800?

It's a bit complicated ...

Explanation:

So the Election of 1800 is sometimes called the Revolution of 1800 because it was the first time in America's short history that power passed from one political party to the other. This was extremely important because it established the idea that, in the United States, a party would peacefully give up power if it lost an election.

The Election of 1800

Explanation:

The election of 1800 was between Thomas Jefferson's democratic-republican party and John Adam's federalist party. The federalists saw Thomas Jefferson as a dangerous supporter of France and an opponent to religion. This election was the first election of the United States which was directly affected by the personal attacks from both the sides. Thomas Jefferson wins the election.