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Pisistratus

(Encyclopedia)Pisistratus pīsĭsˈtrətəs [key], 605?–527 b.c., Greek statesman, tyrant of Athens. His power was founded on the cohesion of the rural citizens, whom he consolidated with farseeing land laws. His...

Regiomontanus

(Encyclopedia)Regiomontanus rēˌjēōmŏnˌtāˈnəs [key] [Lat.,=belonging to the royal mountain, i.e., to Königsberg], 1436–76, German astronomer and mathematician, b. Königsberg. His original name was Johan...

Harmodius and Aristogiton

(Encyclopedia)Harmodius and Aristogiton härmōˈdēəs, ârˌĭstōjīˈtən [key], d. c.514 b.c., Athenian tyrannicides. Provoked by a personal quarrel, the two friends planned to assassinate Hipparchus and his b...

astrolabe

(Encyclopedia)astrolabe ăsˈtrəlāb [key], instrument probably used originally for measuring the altitudes of heavenly bodies and for determining their positions and movements. Although its origin is ancient and ...

Euclid, Greek mathematician

(Encyclopedia)Euclid yo͞oˈklĭd [key], fl. 300 b.c., Greek mathematician. Little is known of his life other than the fact that he taught at Alexandria, being associated with the school that grew up there in the l...

Apollodorus, Greek scholar

(Encyclopedia)Apollodorus (of Athens), fl. 2d cent. b.c., Greek scholar. He wrote many works on grammar, history, and mythology. His best-known books, only fragments of which survive, are On the Gods, a prose treat...

Hercules, Greek hero

(Encyclopedia)Hercules both: hĕrˈəklēzˌ [key], most popular of all Greek heroes, famous for extraordinary strength and courage. Alcmene, wife of Amphitryon, made love to both Zeus and her husband on the same n...

Antenor, Greek sculptor

(Encyclopedia)Antenor ăntēˈnôr [key], fl. last half of 6th cent. b.c., Greek sculptor who executed the bronze statues of the tyrannicides Harmodius and Aristogiton. In 480 b.c., Xerxes carried these statues awa...