Profession: Explorer and Leader of Lewis & Clark Expedition
Why Famous: Along with Meriwether Lewis, he helped lead the Lewis and Clark Expedition of 1803 to 1806 across the Louisiana Purchase to the Pacific Ocean.
In the process, claiming the Pacific Northwest for the United States.
- 1808-01-05 Explorer William Clark (37) weds Julia Hancock in Fincastle, Virginia
- 1799-07-24 William Clark is willed the slave York
- 1804-05-14 Meriwether Lewis and William Clark's expedition commissioned by Thomas Jefferson sets out from St Louis for Pacific Coast
- 1805-04-07 Lewis and Clark Expedition leaves Fort Mandan (on the Missouri River near what is now Washburn, North Dakota), beginning their journey to the Pacific Ocean
- 1805-05-26 Lewis and Clark first sight the Rocky Mountains
- 1805-11-07 Lewis and Clark Expedition first sights the Pacific Ocean at the mouth of the Columbia River
- 1805-11-19 Lewis and Clark expedition, led by Meriwether Lewis and William Clark, reaches the Pacific Ocean, first European Americans to cross the west
- 1806-01-08 Lewis and Clark find skeleton of 105' blue whale in Oregon
- 1806-09-23 Lewis and Clark return to St Louis from Pacific Northwest
- 1904-04-13 US Congress authorizes Lewis and Clark Expo $1 gold coin
- 1905-06-01 Lewis and Clark Centennial Exposition opens in Portland, Oregon
- 2001-01-17 President Bill Clinton posthumously raises William Clark's rank from Lieutenant to Captain, and gave the titles of Honorary Sergeant to Sacagawea, a Shoshone woman who served as guide, and York, a person enslaved by William Clark, who assisted the expedition party