- Italy--Montaione2
- Italy--Mugello Valley2
- Jamʻ al-jawāmiʻ fī al-uṣūl (Subkī, Tāj al-Dīn ʻAbd al-Wahhāb ibn ʻAlī)2
- Jaʻbarī, Ṣāliḥ ibn Thāmir, d. 1306. Naẓm al-laʼālī2
- Jerome, Saint, -419 or 4202
- Jews--Dietary laws2
- Judaism--Customs and practices2
- Jugurthine War (111-105 B.C.)2
- Jāmiʻ al-Azhar2
- Kashshāf (Zamakhsharī, Maḥmūd ibn ʻUmar)2
- Kings and rulers--Duties2
- Latin poetry, Medieval and modern2
- Libraries2
- Lollards2
- Luca, Jacopo di2
- Manuscript fragments2
- Manuscripts, Aramaic2
- Manuscripts, Catalan2
- Manuscripts, Dutch2
- Manuscripts, English2