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This Day in American History

February 16

1 historic event on this date

Amendment1804

12th Amendment Proposed by Congress

Congress proposed the 12th Amendment to the states, revising presidential election procedures after the chaotic 1800 election in which Thomas Jefferson and Aaron Burr received equal electoral votes. The amendment required separate electoral ballots for President and Vice President.

Why It Matters

The 12th Amendment fixed a critical flaw in the original electoral process, preventing future contested elections of the kind that nearly derailed the peaceful transfer of power in 1800.

Explore the Principles Behind the History

Every event in American history connects to the founding principles. Discover the ideas that shaped these moments.

View the 28 Founding Principles