We meet our main characters Lewis and Clark. Lewis was hired by president Jefferson to go on an expedition through the U.S. He then writes to his friend Clark to go with him and Clark accepts. After preparing the journey begins on May 14, 1804.
Later on the journey Lewis and Clark meet a French-Canadian fur trapper and his wife named Sacagawea. They had hired them to be an interpreter for the journey on the Missouri river. November 4, 1804
Sacagawea gives birth to her son named Jean Baptiste. February 11, 1805.