Video: 'Fort Clatsop 1805-1806' (Mar. 23, 1806, at 5:25)
(Monday, March 23, 1806; during the Lewis and Clark Expedition) — Explorers Meriwether Lewis and William Clark, having reached the Pacific coast, left Fort Clatsop in the Oregon Country near the mouth of the Columbia River today to begin their journey back east.
(Monday, June 10, 1805; during the First Barbary War) — The First Barbary War, the first of two Barbary Wars between the United States and the four North African states known collectively as the Barbary States to battle pirates seizing American merchant ships and holding the crews for ransom, ended today when Yusuf Karamanli, the best-known Pasha of the Karamanli dynasty of Tripolitania (in present-day Libya) signed a treaty ending hostilities.
Video: 'The Duel at Dawn, 1804 (Alexander Hamilton and Aaron Burr)'
(Wednesday, July 11, 1804, shortly after 7 a.m. local time) — U.S. Vice President Aaron Burr mortally wounded former Treasury Secretary Alexander Hamilton during a pistol duel this morning in Weehawken, New Jersey. Hamilton was carried to the home of William Bayard on the Manhattan shore, where he died at 2:00 p.m. the next day.