Regium or Rhegium Julium:see RhegiumRhegium
, ancient city, S Italy, on the Strait of Messina. It is the modern Reggio di Calabria. Founded (c.720 B.C.) as a colony of Chalcis, many Messenians later settled there. It was powerful until its defeat and destruction (386 B.C.) by Dionysius the Elder of Syracuse.
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