History by country, small region and city
HistoryModernAncient historyArchaeologyContemporaryPost-classicalIndian historyEarly modernAncientHistory by country, small region and cityFrom Lably lessonsHistory by topicHistorical cities, towns and archaeological sitesBasicsPrehistoryHistory by countryHistorical citiesModern historyHistory by subject matterPost-classical historyHistory by continent and large regionAuxiliary historical sciencesHistory & CivicsHistory by subjectHistory by continent and regionHistory by ethnicityHistory by regionGeneral
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- Occupied Enemy Territory AdministrationPart of Ottoman Syria, 1918–1920
- Odorhei CountyOdorhei County was a county (Romanian: județ) in the Kingdom of Romania. The county seat w
- Oorlam peopleEthnic group from southern Africa
- Operation FranticOperation Frantic was a series of seven shuttle bombing operations during World War II con
- Orange CoastThe Orange Coast is the string of cities and neighborhoods fronting the Pacific Coast in O
- Owens Valley Indian WarThe Owens Valley War was fought between 1862 and 1863 by the United States Army and Americ