Ommiades

Ommiades, an Arab dynasty of 14 caliphs which reigned at Damascus from 661 to 720; dethroned by the Abassides, they were under Abder-Rahman I. welcomed in Spain, and they established themselves in Cordova, where they ruled from 756 to 1031.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

O'Meara, Barry Edward * Omnipresence
[wait for the fun]
Olympus
Olney
Om
Omagh
Omaha
Oman
Omar
Omar Khayyám
Omar Pasha
O'Meara, Barry Edward
Ommiades
Omnipresence
Omphalë
Omsk
Onega, Lake
Onomatopœia
Ontario
Ontario, Lake
Ontology
Onyx
Oosterzee, Jan Jakob van