Meriwether Lewis is picked as commander of the oncoming expedition.-Spring
The Announcement of the Louisiana Purchase.
Start of Expedition
Sgt. dies of a burst appendix
The men attempt to drown a prarie dog
Toussaint Charbonneau(French Canadian fur trapper living with the Hidastsas) is hired as an interpreter by Lewis and Clark. His wife, Sacagawea( a Shoshone who had been captured by the Hidatsas and sold to Charbonneau) is also considered helpful as Shoshones are said to live at the headwaters of the Missouri.
Sacagawea gives birth
Sacagawea gives birth to a baby boy, Jean Baptiste during the expedition.
Lewis and Clark send an update
Lewis and Clark send the keelboat and about a dozen men back downriver, with maps, reports, Indian artifacts and other scientific specimens for Jefferson. The remaining party heads west.
Expedition Votes on Winter Quarters
By majority vote the expedition decides to cross to the south side of the Columbia River to build winter quarters.
Lewis and Clark return to Washington D.C. and are rewarded and labled National Heroes.