-
President Thomas Jefferson asks Congress for approval to explore the western part of America.
-
Lewis begins training as the expedition's leader.
-
News of the Louisiana Purchase is announced, therefore Lewis will be exploring land that is mostly owned by the United States.
-
Lewis travels down the Ohio River and picks up Clark and other expedition members along the way.
-
Lewis and Clark set up a camp along the wood river in Illinois.
-
Lewis and Clark hire Toussaint Charbonneau and his wife Sacagawea as interpreters for the rest of the trip.
-
Lewis and Clark record temperatures at 45 degrees below zero. Temperatures this cold are unheard of in the United States today.
-
Lewis helps deliver Sacagawea's son, Jean Baptist Charbonneau
-
The expedition arrives at Sacagawea's native lands, the Shoshone Lands. Sacagawea is reunited with her long lost brother, Cameahwait.
-
Lewis and Clark have reached what they believe to be the Pacific Ocean and have to decide where to build their camp for the winter. They have really only reached a widening estuary of the Columbia River. The team decides to call the camp Fort Clatsop.
-
Lewis and Clark have reached St. Louis two and a half years after beginning their journey. They are regarded as national heroes.