Himera (hĭm`ərə), ancient city on the north coast of Sicily, founded by Greeks in the 7th cent. B.C. Here in 480 B.C. (a traditional date) forces led by Gelon routed the Carthaginians led by Hamilcar. Years later the Carthaginians destroyed (409 B.C.) the city. The citizens moved to nearby Thermae (modern Termini). The poet Stesichorus was born in Himera.