Subject
- Medicine1
- Medicine on postage stamps2
- Medicine, Persian13
- Mekhon Ṿaitsman le-madaʻ1
- Metric system3
- Mexico11
- Microbiologists4
- Microbiology1
- Mommsen, Theodor, 1817-19031
- Monaco4
- Monks1
- Monuments3
- Mosdossy, Imre von, 1904-19951
- Moskovskiĭ gosudarstvennyĭ universitet im. M.V. Lomonosova1
- Murgoci, G. (Gheorghe), 1872-19751
- Muslim scholars13
- Mutsu (Ship)2
- National socialism1
- Nevada--Beatty1
- Nevada--Comstock Lode1