- Marucelli, Francesco, 1625-17031
- Mathematical instruments1
- Mathematics1
- Mayenne, Charles de Lorraine, Duc de, 1554-16111
- Medicine1
- Medicine, Arab1
- Medina Sidonia, Alonso Pérez de Guzmán, duque de, 1550-16191
- Medina Sidonia, Juan Alonso de Guzmán, Duque de, -15581
- Medina, Francisco de, 1544-16151
- Meditations1
- Mediterranean Sea1
- Mekhilta of Rabbi Ishmael1
- Merchants1
- Michaelmas1
- Michigan--Kalamazoo1
- Midrash rabbah1
- Midrash rabbah. Exodus1
- Midrash rabbah. Genesis1
- Midrash rabbah. Leviticus1
- Midrash rabbah. Song of Solomon1