Advances in manufacturing and transportation spurred a great economic expansion in the early 1900s. This fascinating process helped forge a national identity, but fueled growing regional tensions. The turbulent transformation spurred one of the greatest burst of reformism in American history. Countless reform movements reflected the compulsion of Americans to restore order to their increasingly complex world.

Originally released by Media Rich Learning, 2017. Streaming video file encoded with permission for digital streaming by Infobase on October 12, 2017.

Expansion Transportation (6:54); --Economic Expansion (4:45); -- Social Reform (6:22); -- Abolition Movement (5:14); -- Credits: Expansion and Reform (0:13); -- Social Reform (11:36);.