- International relations3
- Introductions1
- Iraq1
- Ireland2
- Isabel, of Coimbra, Queen, consort of Afonso V, King of Portugal, 1432-14551
- Isagoge (Porphyry)1
- Isaiah (Biblical prophet)1
- Isidore, of Seville, Saint, -6361
- Isidore, of Seville, Saint, -636. Etymologiae1
- Islam1
- Islamic (culture or style)2
- Islamic calendar2
- Islamic law1
- Israel--Tsefat1
- Italian (culture or style)499
- Italian language3
- Italian literature4
- Italian literature--Societies, etc.1
- Italian poetry12
- Italian rotunda (script)3