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Demetrius II, king of ancient Syria

(Encyclopedia)Demetrius II (Demetrius Nicator) nīkāˈtər [key], d. c.125 b.c., king of ancient Syria, son of Demetrius I. He was aided against the usurper, Alexander Balas, by Ptolemy VI (Ptolemy Philometer). He...

Seleucus II

(Encyclopedia)Seleucus II (Seleucus Callinicus), d. 226 b.c., king of ancient Syria (247–226 b.c.), son of Antiochus II. On his father's death there was a struggle for the throne between Seleucus and his stepmoth...

Hipparchus, Greek astronomer

(Encyclopedia)Hipparchus, fl. 2d cent. b.c., Greek astronomer, b. Nicaea, Bithynia. He is the first systematic astronomer of whom there are records. He made his observations chiefly on the island of Rhodes. Ptolemy...

Manetho

(Encyclopedia)Manetho mănˈĭthō [key], fl. 300 b.c., Egyptian historian, a priest at Heliopolis, under Ptolemy I and Ptolemy II. His work, covering the history of Egypt from legendary times to 323 b.c., is writt...

Antiochus I

(Encyclopedia)Antiochus I (Antiochus Soter) āntīˈəkəs sōˈtər [key], b. c.324 b.c., d. c.262 or 261 b.c., king of Syria (280–261? b.c.), son of Seleucus I. He did not, like his father, seek to expand in Eu...

Lysimachus

(Encyclopedia)Lysimachus līsĭmˈəkəs [key], c.355–281 b.c., Thessalian general of Alexander the Great. He was a commander in Alexander's fleet on the Hydaspes as well as his bodyguard. On Alexander's death (3...

Demetrius I, king of Macedon

(Encyclopedia)Demetrius I (Demetrius Poliorcetes) dĭmēˈtrēəs pŏlˌēôrsēˈtēz [key], c.337–283 b.c., king of Macedon. The son of Antigonus I, he proved himself a very able commander in his father's wars,...

Eudoxus of Cyzicus

(Encyclopedia)Eudoxus of Cyzicus sĭzˈĭkəs [key], fl. 130 b.c., Greek navigator in the service of the Ptolemies. He explored the Arabian Sea for Ptolemy VIII. After being blown from his course to the east coast ...

Almagest

(Encyclopedia)Almagest: see Ptolemy.

Diadochi

(Encyclopedia)Diadochi dīădˈəkī [key] [Gr.,=successors], the Macedonian generals and administrators who succeeded Alexander the Great. Alexander's empire, the largest that the world had known to that time, was...