- Hilarion, Saint, approximately 291-approximately 3711
- Holy Week services1
- Holy Week--Liturgy1
- Hugh, of Fouilloy, -1172 or 1173. De medicina animae1
- Humanism1
- Humanistic ethics1
- Humanity of Jesus Christ1
- Hymnals1
- Hymns, French1
- Hymns, German1
- Hymns, Latin1
- Illumination of books and manuscripts, French1
- Illumination of books and manuscripts, Gothic1
- Illumination of books and manuscripts, Italian1
- Illumination of books and manuscripts, Medieval1
- Incarnation1
- Indians of Mexico--Legal status, laws, etc.1
- Indians of South America--Legal status, laws, etc.1
- Indians, Treatment of1
- Ink1