- Menstruation--Religious aspects--Islam1
- Mental health--Religious aspects1
- Meschiati, Giovanni1
- Metalli, Giuliano1
- Meteorologica (Aristotle)1
- Meteorology1
- Methodism (Ancient medicine)1
- Methodology1
- Mexico--San Juan Teotihuacán1
- Mexico--San Juan Teotihuacán--Teotihuacán Site1
- Mexico--Zumpango (Municipio)1
- Mexía, Pedro, 1496?-1552?1
- Mezuzah1
- Michelangelo Buonarroti, 1475-1564. Correspondence1
- Michele, Lapo di1
- Michele, Lorenzo de'1
- Michele, Maso di1
- Michele, Niccolò di1
- Michele, Olivo di1
- Middle East--Jerusalem (Latin Kingdom)1