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Soranus

(Encyclopedia)Soranus sərāˈnəs [key], fl. 1st–2d cent. a.d., Greek physician, probably b. Ephesus. He is believed to have practiced in Alexandria and in Rome and was an authority on obstetrics, gynecology, an...

Aristophanes of Byzantium

(Encyclopedia)Aristophanes of Byzantium bĭzănˈshēəm, –tēəm [key], c.257–180 b.c., Greek scholar. He was librarian at Alexandria, edited various texts, and reputedly invented the Greek diacritical marks. ...

Basilides

(Encyclopedia)Basilides bəsĭlˈĭdēz [key], fl. 120–145, Gnostic teacher of Alexandria. He wrote Exegitica (his personal gospel with 24 books of commentary) and poems. He claimed to possess a secret tradition ...

Aenesidemus

(Encyclopedia)Aenesidemus ēnĕsˌĭdēˈməs [key], Greek skeptic philosopher, fl. probably 1st cent. b.c. Thought to be a native of Knossos, Crete, he taught in Alexandria. Although his writings have been lost, i...

Ptolemy X

(Encyclopedia)Ptolemy X (Ptolemy Alexander), d. 88 b.c., king of ancient Egypt (107 b.c.–88 b.c.), of the Macedonian dynasty, brother of Ptolemy IX. He was governor in Cyprus when called (110 b.c.) by his mother ...

Ptolemy II

(Encyclopedia)Ptolemy II (Ptolemy Philadelphus) fĭlədĕlˈfəs [key], c.308–246 b.c., king of ancient Egypt (285–246 b.c.), of the Macedonian dynasty, son of Ptolemy I and Berenice (c.340–281 b.c.). He cont...

Herophilus

(Encyclopedia)Herophilus hĭrŏfˈələs [key], fl. 300 b.c., Greek anatomist, called by some the father of scientific anatomy. A contemporary of Erasistratus at Alexandria, he made public dissections, comparing hu...

crane, in zoology

(Encyclopedia)crane, large wading bird found in marshes in the Northern Hemisphere and in Africa. Although sometimes confused with herons, cranes are more closely related to rails and limpkins. Cranes are known for...

Valentinus

(Encyclopedia)Valentinus văləntēˈnəs [key], fl. c.135–c.160, founder of the Valentinians, the most celebrated of the Gnostic sects (see Gnosticism) of the 2d cent. The little that is known of his life is fou...

Hypatia

(Encyclopedia)Hypatia hīpāˈshə [key], d.415, Alexandrian Neoplatonic philosopher and mathematician, a woman renowned for her learning, eloquence, and beauty. Little is known of her writings. Her fame is largely...