Encyclopedias, Almanacs, Transcripts, and Maps
- Calixtus, Georg
- Calixtus°
- Call to Action Conference
- Callahan, Patrick Henry
- Callan, Charles Jerome
- Calle, Sophie
- Callenberg, Johann Heinrich°
- Callewaert, Camille
- Calligraphy and Writing Masters
- Calligraphy, Modern Hebrew
- Callinicus, Patriarch of Constantinople
- Callisthenes
- Callistus Angelicudes
- Callistus I, Patriarch of Constantinople
- Callistus I, Pope, St.
- Callistus II Xanthopulus, Patriarch of Constantinople
- Callistus II, Pope
- Callistus III, Antipope
- Callistus III, Pope
- Callo, Marcel, Bl.