What are some important dates of the Lewis and Clark expedition?

January of 1803: Jefferson requests $2500 from Congress to pay for the costs of the trip.

August 30, 1803: Lewis leaves Pittsburgh PA, sailing down the Ohio River towards St. Louis

October 13, 1803: Lt. William Clark joins Lewis at Camp Dubois May, 1804: Lewis and Clark leave St. Louis with a party of nearly 30 Nov. 4, 1804: Lewis and Clark hire Toussaint Charbonneau as a guide and he and his wife Sacajawea join the party

Nov. 27, 1804: The party finishes building and settle at For Mandan, in Bismark, ND

February 11, 1805: Sacagawea gives birth to her son Jean-Baptiste Charbonneau

November 5, 1805: The expedition lands at the mouth of the Columbia River, Astoria, Oregon

March 23, 1806: The expedition begins its journey home July 3, 1806: The expedition splits into two teams, so Lewis could explore the Marias River .

August 11, 1806: The expedition reunite at the confluence of the Yellowstone and Missouri Rivers September 23, 1806: The expedition arrive in St. Louis