Part of a "The US Explained" series by the YouTube Channel "That Is Interesting".
A very thorough explanation of the history of Indiana, and the surrounding states as well, how they were formed, the peoples that populated them, the geography, and the migration patterns. Includes the National Road, which may be how some of our ancestors travelled in the region. (probably how mine travelled to Illinois, especially to Effingham).
https://youtu.be/UKmgPr5AdsI