Odenathus of Palmyra, [431]

Odoacer, [236], [431]

Odyssey, [127]

Ogdai Khan, [287], [289], [432]

Oglethorpe, [336]

Okapi, [397]

“Old Man,” [372], [373]

Old Testament, [115], [116]

Olympiad, first, [176], [429]

Olympian games, [131]