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Orchomenus(ôrkŏm`ĭnəs), ancient city of Boeotia, central Greece, NW of Lake Copaïs. After 1600 B.C. it was an important center of the Mycenaean civilizationMycenaean civilization
, an ancient Aegean civilization known from the excavations at Mycenae and other sites. They were first undertaken by Heinrich Schliemann and others after 1876, and they helped to revise the early history of Greece. Divided into Early Helladic (c.
..... Click the link for more information. . In later times the city was eclipsed by Thebes. Near Orchomenus, Sulla won (85 B.C.) a significant victory over Archelaus, general of Mithradates VIMithradates VI
(Mithradates Eupator) , c.131 B.C.–63 B.C., king of Pontus, sometimes called Mithradates the Great. He extended his empire until, in addition to Pontus, he held Cappadocia, Paphlagonia, and the Black Sea coast beyond the Caucasus.
..... Click the link for more information. . Excavations on the site have been extensive. There was another Orchomenus in Arcadia, NW of Mantinea.