- Judgment Day (Islam)1
- Knowledge, Theory of (Islam)1
- Latin literature, Medieval and modern1
- Leather doublures1
- Manuscripts, Italian1
- Manuscripts, Judeo-Arabic1
- Manuscripts, Latin (Medieval and modern)1
- Manuscripts, Samaritan1
- Marginalia1
- Massachusetts--Boston1
- Mathematics, Arab1
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- Mukhtaṣar (Khalīl ibn Isḥāq al-Jundī)1
- Muslim scholars1
- Muḥammad, Prophet, -6321
- Najīb al-Dīn al-Samarqandī, Muḥammad ibn ʻAlī, -1222. Asbāb wa-al-ʻalāmāt1