Lewis and Clark By danij May 14, 1804 Departure from St. Louis Aug 20, 1804 Sgt. Charles Floyd dies Nov 4, 1804 Sacagawea joins the expedition Feb 11, 1805 Sacagawea gives birth May 29, 1805 Clark names the Judith River Jun 13, 1805 Lewis comes across the Missouri in Great Falls Nov 27, 1805 Clark writes his most famous journal entry Mar 7, 1806 The expedition runs out of tobacco Jul 27, 1806 Fight with Blackfeet Sep 23, 1806 Lewis and Clark arrive in St. Louis