or DATUS, (anc. geog.), a town of Thrace, situated between Neapolis and the river Nestus: A colony of the Thracians, according to Eustathius; who places it on the sea-coast, near the Strymon, in a rich and fruitful soil, famous for ship-building and mines of gold; hence the proverb Δεικνύεται ἀγαθόν, denoting prosperity and plenty, (Strabo.) Appian describes it as seated on a steep eminence, the whole of which it covered. It was taken by Philip of Macedon, who changed its name to Philippi, being originally called Crenides on account of its springs. It was afterwards famous for the defeat of Brutus and Cassius by Augustus and Antony.