1788-1790: · Sacajawea born

1799-1801: · Sacajawea captured by Hidatsas. Sold or gambled away to Toussaint Charbonneau, who makes her one of numerous wives.

Fall 1803: · Lewis and Clark Expedition assembles in St. Louis

May 14, 1804: · The expedition sets off going upstream on the Missouri River

September 25, 1804: · The expedition has a conflict with the Sioux

November 3, 1804: · Toussaint Charbonneau offers his services to the expedition as an interpreter

February 1805: · Sacajawea gives birth to Jean Baptiste ("Pomp")

Spring 1805: · The expedition leaves its winter camp. Sacajawea, carrying Jean Baptiste, accompanies her husband Charbonneau on the journey.

May 14, 1805: · A sudden storm nearly capsizes one of the expedition's boats. Sacajawea's quick action saves many valuable supplies from floating away.

June 3, 1805: · The expedition reaches the Marias River

August 11, 1805: · The expedition sights a Shoshone man for the first time

August 18, 1805: · Sacajawea helps Lewis and Clark trade for Shoshone horses

September 20, 1805: · The expedition emerges from Bitterroot Mountains into Nez Perce territory

October 6, 1805: · Water travel resumed, now on the Columbia River

November 8, 1805: · The expedition first sights the Pacific Ocean

December 7, 1805: · The explorers camp for the winter, start building Fort Clatsop

January 1, 1806: · Construction of Fort Clatsop finished

March 22, 1806: · Fort Clatsop turned over to the locals, return journey begun

May 11, 1806: · The expedition meets up with several Nez Perce chiefs. Charbonneau and Sacajawea interpret.

June 10, 1806: · Departure from Nez Perce region

June 29, 1806: · Crossing of Bitterroot Mountains complete

July 15, 1806: · Clark's party (including Sacajawea) reaches Yellowstone River.

July 26, 1806: · Lewis's party has skirmish with Blackfeet Indians

August 12, 1806: · Lewis and Clark's groups reunite

August 17, 1806: · Sacajawea and Charbonneau leave the expedition

August 20, 1806: · Clark writes letter to Charbonneau, Sacajawea. Offers to take over responsibility for raising Jean Baptiste ("Pomp").

September 1806: · Lewis and Clark Expedition reaches St. Louis

October 30, 1810: · Charbonneau buys land on Missouri River from Clark

1811: · Charbonneau sells land back to Clark. Sacajawea and Charbonneau leave St. Louis area; leave Jean Baptiste with Clark.

December 20, 1812: · Alleged date of Sacajawea's death at Fort Manuel in South Dakota