Mesozoic 216
Miocene 201
Mississippian 164
Middle English, 1100-1500 130
Middle Ages, 600-1500 109
Medieval, 500-1500 72
Middle Ages, 500-1500 27
Modern period, 1500- 23
Middle Irish, 1100-1550 21
Medieval period, 1066-1485 20
Macedonian Expansion, 359-323 B.C. 18
Meiji period, 1868-1912 17
Ming dynasty, 1368-1644 16
Modern period, 1600- 11
Mary Stuart, 1542-1567 8
May Fourth movement, 1919 7
Macedonian Hegemony, 323-281 B.C. 6
Ming-Qing dynasties, 1368-1912 6
Malayan Emergency, 1948-1960 4
Mohammad Reza Pahlavi, 1941-1979 4
Mary I, 1553-1558 3
Mau Mau Emergency, 1952-1960 3
Medieval and early modern period, 425-1789 3
Medieval period, 987-1515 3
Mexican War, 1846-1848 3
Middle High German, 1050-1500 3
Modern 3
Modern period, 1750- 3
Marcus Aurelius, 161-180 2
Mehmed V, 1909-1918 2
Mehmed VI, 1918-1922 2
Mithridatic Wars, 88-63 B.C. 2
M 211 Shakespeare Recording Society 1
M 32313) Columbia 1
M.E. 708 Associated Music Publishers 1
MHS 522114) Musical Heritage Society 1
ML 6184, BM10) Columbia 1
ML-2387 Ditson 1
ML4173) Columbia 1
MS 6197) Columbia 1
Maria I, 1777-1816 1
Maria Theresa, 1740-1780 1
Mass internment, 1942-1945 1
Massacre, 1972 1
Maurya dynasty, ca. 322 B.C.-ca. 185 B.C. 1
Maximilian II, 1564-1576 1
Maximinus, 235-238 1
Mehmed IV, 1648-1687 1
Meiji period, 1868- 1
Middle Ages, 500-1600 1
Middle French, 1300-1600 1
Middle Kingdom, ca. 2180-ca. 1551 B.C. 1
Mississippi 1
Modern Chinese, 1919- 1
Mohammed Ali, 1805-1849 1
Moncada Barracks Attack, 1953 1
Muromachi period, 1336-1573 1