Oo (25/25)

Oberhollabrunn, 1805 * Ocean Pond Oenophyta, 457 f.Kr. Ohod, 625 *
Okinawa, 1945 * Olmütz, 1758 * Oltenita, 1853 * Olustee, 1864 *
Omdurman, 1898 Oostende, 1601-04 * Oporto, 1809 * Oran I, 1509 *
Oran II, 1940 * Orchard Knob-Indian Hill, 1863 * Orchomenus, 85 f.Kr. * Oriskany, 1777 *
Orleans, 1428-29 * Ostindien, 1941-42 Ostroleka, 1831 * Oswego, 1756 *
Otterburn, 1388 * Otumba, 1520 * Oudenarde, 1708 * Ourcq-floden, 1914 *
Ourique, 1139 *