- Medicine, Medieval--Manuscripts3
- Medicine, Persian3
- Medicine--Manuscripts3
- Military policy3
- Mines and mineral resources3
- Monasticism and religious orders for women3
- More, Thomas, Saint, 1478-15353
- Mukhtār lil-fatwá (Mawṣilī, ʻAbd Allāh ibn Maḥmūd)3
- Muslim scholars3
- Mysticism3
- Nahuatl language--Writing3
- Naples (Kingdom)3
- Navarre (Kingdom)3
- Nawawī, 1233-1277. Rawḍat al-ṭālibīn3
- Nicomachean ethics (Aristotle)3
- Nukhbat al-fikar fī muṣṭalaḥ ahl al-athar (Ibn Ḥajar al-ʻAsqalānī, Aḥmad ibn ʻAlī)3
- Oaths3
- Orden de Santiago3
- Orthodox Eastern Church3
- Paul III, Pope, 1468-15493