(c.455–c.400 BC), Greek historian. He is remembered for his History of the Peloponnesian War, which analyses the origins and course of the war; he fought in the conflict on the Athenian side.
Definition of Thucydides in US English:
Thucydides
proper nounTHo͞oˈsidədēzθuˈsɪdədiz
(c.455–c.400 BC), Greek historian. Remembered for his History of the Peloponnesian War, he fought in the conflict on the Athenian side.