- Manichaeism1
- Manners and customs1
- Manuscripts, European1
- Manuscripts, Greek1
- Manuscripts, Greek (Medieval and modern)1
- Manuscripts, Hebrew1
- Mathematics, Greek1
- Medici, Lorenzo de', 1449-14921
- Medicine, Medieval1
- Medicine--Study and teaching1
- Michaelmas1
- Michigan--Kalamazoo1
- Military history, Medieval1
- Monastic and religious life--Early church1
- Monasticism and religious orders1
- Music, Greek and Roman1
- Mythology, Classical1
- Nicomachean ethics (Aristotle)1
- Nobility1
- Nobility of character1