U.S. History
- Caroline Affair
- carpetbaggers
- Carter doctrine
- Cattle drives
- Challenger Disaster
- Chattanooga campaign
- Chicanos
- Chinese Americans
- Chinese exclusion
- Chinese Exclusion Act
- Chisholm Trail
- Cibola
- Citizenship
- Civilian Conservation Corps
- Clayton Antitrust Act
- Clayton-Bulwer Treaty
- Clipper ships
- Clothing and Fashion
- cold war
- Collecting