Sacagawea was born around 1788 near the ... the entire winter between 1804 and 1805 until she gave birth to her son, Jean-Baptiste Charbonneau, and could travel. When she was only a teenager ...

Sacagawea was pregnant with a child with Charbonneau when they joined the Corps of Discovery. Their son Jean Baptiste Charbonneau was born on February 11, 1805, at Fort Mandan, where the Corps spent a ...