Eudoxus of Cnidus, a Grecian astronomer, was a pupil of Plato, and afterwards studied in Egypt; said to have introduced a 365½ day year into Greece; flourished in the 4th century B.C.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Eudocia * Eugene, François, Prince of Savoy