Encyclopedias, Almanacs, Transcripts, and Maps
- Calahorra
- Calahorra, Israel Samuel ben Solomon
- Calamus, Sweet
- Calancha, Antonio de la
- Calas, Jean
- Calatayud
- Calatrava
- Calatrava, Order of
- Calcidius
- Caldey, Abbey of
- Caldwell, Mary Gwendoline
- Caleb, Calebites
- Calendar Reform
- Calénus, Henri
- Calepino, Ambrogio
- California, The Catholic Church in
- Caligula, Caius Caesar Augustus°
- Calimani, Simḥah ben Abraham
- Calin, Vera
- Calisch, Edward Nathan