Period 4 (1800-1848) - Resources
- Website - The Gilder Lehrman Institute of American History (Timeline, Documents, Additional Videos)
- Video - Adam Norris - Review Videos
- Video - Crash Course History - "Where US Politics Came From: Crash Course History #9"
- Video - Crash Course History - "Thomas Jefferson and His Democracy: Crash Course History #10"
- Video - Crash Course History - "The War of 1812: Crash Course History #11"
- Video - War of 1812
- Video - Crash Course History - "The Age of Jackson: Crash Course History #14"
- Video - Crash Course History - "War & Expansion: Crash Course History #17"
- P. Source - W. Barret Travis, To the Citizens of Texas
- Video - Crash Course History - "The Market Revolution: Crash Course History #12"
- Video - Crash Course History - "19th Century Reforms: Crash Course History #15"
- Video - Crash Course History - "Women in the 19th Century: Crash Course History #16"
Period 4 - "Jeffersonian" Democracy