As of the start of 1804, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.

Learn about 48 famous, scandalous and important events that happened in 1804 or search by date or keyword.

On July 11, 1804, in one of the most famous duels in American history, Vice President Aaron Burr fatally shoots his long-time political antagonist Alexander Hamilton. Hamilton, a leading...

Nov 6, 2025 · United States presidential election of 1804 was an American presidential election held in 1804, in which Democratic-Republican incumbent Thomas Jefferson defeated …

What happened in the year 1804 in history? Famous historical events that shook and changed the world. Discover events in 1804.

Jul 3, 2024 · It was a year that saw the rise of influential leaders, groundbreaking scientific achievements, and notable cultural milestones. This timeline provides a detailed account of …

November 3 – The Treaty of St. Louis (1804) is signed by Quashquame and William Henry Harrison; controversy surrounding the treaty eventually causes the Sauks to ally with the …

Nov 1, 2024 · The Election of 1804 brought new rules. In the handful of previous elections, the candidate receiving the most electoral votes became president and the candidate with the …

In 1804 the United States was growing rapidly in population as well as territory. The 1800 census indicated that the nation was composed of about 5.3 million people.

What happened and who was famous in 1804? Browse important and historic events, world leaders, famous birthdays and notable deaths from the year 1804.