Bing found the following results
1804 - Wikipedia
Haitian Revolution | Causes, Summary, & Facts | Britannica
1804 in the United States - Wikipedia
Historical Events in 1804 - On This Day
United States presidential election of 1804 - Britannica
Haitian independence proclaimed | January 1, 1804 | HISTORY
Coronation of Napoleon I - World History Encyclopedia
The United States in 1804 - University of Houston
Lewis and Clark: Expedition, Purpose & Facts | HISTORY
Jan. 1, 1804: Haitian Independence - Zinn Education Project