I Am Sacagawea, along with its sister episode, "I Am Confucius," aired on October 6, 2020. For unknown reasons, this episode is now paired with I Am Jigonsaseh, which will premiere on November 1, 2021.
They visit her in 1805 which is described as over 200 years ago. Historically, she was with Lewis and Clark from November 1804 until August 1806, this was in the middle of her expedition.
Being born around May 1788 this would make her around 17 years old, despite seeming younger around the Riddles' preteen age-group based on her size.
This episode later being re-paired with Jigonsaseh goes against the show's boy-girl episode pairing rule.