1804 was a leap year starting on Sunday of the Gregorian calendar and a leap year starting on Friday of the Julian calendar, the 1804th year of the Common Era (CE) and Anno Domini (AD) designations, the 804th year of the 2nd millennium, the 4th year of the 19th century, and the 5th year of the 1800s decade. As of the start of 1804, the ...

Events from the year 1804 in the United States. February 15 – New Jersey becomes the last northern state to abolish slavery. February 16 – First Barbary War: Stephen Decatur leads a raid to burn the pirate-held frigate Philadelphia. February 18 – Ohio University is chartered by the Ohio General Assembly.

Presidential elections were held in the United States from November 2 to December 5, 1804. Incumbent Democratic-Republican president Thomas Jefferson defeated Federalist Charles Cotesworth Pinckney of South Carolina.

2024年10月19日 · Discover the value of the rare 1804 Silver Dollar. How much is this legendary coin worth? Learn about its mintage, price, and historical significance. No mint mark. A numismatic treasure sought by collectors worldwide.

2025年3月1日 · Burr-Hamilton duel, duel fought between U.S. Vice Pres. Aaron Burr and Alexander Hamilton, former first secretary of the U.S. Treasury, on July 11, 1804, in Weehawken, New Jersey, that resulted in the death of Hamilton the following day.

2016年2月27日 · Adding the new territory—together with his elimination of all internal taxes, his reduction of the national debt, and his refutation of critics’ predictions that he would unleash in America all the excesses of the French Revolution—helped Jefferson in 1804 to secure a landslide 162-14 electoral vote victory.

Haitian Declaration of Independence (1804) Editor’s Note: On January 1, 1804, after a protracted war with forces sent by Napoleon Bonaparte to quell its uprising, Haiti (formerly Saint-Domingue) declared its independence from France.

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The 1804 Dollar, known as the “King of American Coins,” is one of the most famous and rarest coins in U.S. numismatic history. Despite its 1804 date, no silver dollars were officially minted that year.

Evidently the eastern wood rat, Neotoma floridana, then new to science; Clark mentions it again briefly on July 7, 1804. Lewis's description on February 27, 1806 , was the first scientific account of the species.