Please remember that for many of the topics below you will have to look at print resources that address a broader topic... for example: You can look at books that are about the United States - Early History (973) and use the index to find a more narrow topic such as Abraham Lincoln, or Underground Railroad.
- Slavery in the American south - 305.8, 306.3, 326
- Abraham Lincoln - 921 LIN, 973
- Frederick Douglas - 921 DOU, 973
- the Underground Railroad - 306.3, 973, 973.7
- Native Americans and the Trail of Tears - 323.1, 970.004, 973, 975
- American Revolution - 973, 973.3
- Columbian Exchange - 973
- Lewis and Clark expedition - 917.804, 973, 978, 978.02
- Enlightenment - 810.9, 973
- French and Indian War - 973
- Oregon Trail - 921 FUL (Fulton) 973, 978
- California Gold Rush - 973, 979.4
- Mormonism - 289.3, 921 YOU (Brigham Young), 973
Directions for database resource can be found here.