Encyclopedias, Almanacs, Transcripts, and Maps
- Clinton, Henry
- Clinton, James
- Clinton, William J.
- Clinton-Cornwallis Controversy
- Clocks and Watches
- Clodius Albinus
- cloth industry
- Clothing and Fashion, Middle East
- Clothing, Dress, and Fashion
- Clovis Point
- Club Atenas
- Clubbed Musket
- Cluniacs
- Clymer, George
- Coal Mine Contract Signed
- Coalition of Labor Union Women
- Coartación
- Coatlicue
- Cobden-Chevalier Treaty
- Cobos, Francisco De Los (c. 1477–1547)