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ɪ k /; Koinē Greek: Πτολεμαϊκὴ βασιλεία, Ptolemaïkḕ basileía) [6] or Ptolemaic Empire [7] was an Ancient Greek polity based in Egypt during the Hellenistic period. [8] It was founded in 305 BC by the Macedonian Greek general Ptolemy I Soter , a companion of Alexander the Great , and ruled by the Ptolemaic dynasty until ...
Reigning for 275 years, the Ptolemaic was the longest and last dynasty of ancient Egypt from 305 BC until its incorporation into the Roman Republic in 30 BC. [ 6 ] [ 7 ] Ptolemy , a general and one of the somatophylakes (bodyguard companions) of Alexander the Great , was appointed satrap of Egypt after Alexander's death in 323 BC.
Pages from 1550 Annotazione on Sacrobosco's De sphaera mundi, showing the Ptolemaic system. In the Ptolemaic system, each planet is moved by a system of two spheres: one called its deferent; the other, its epicycle. The deferent is a circle whose center point, called the eccentric and marked in the diagram with an X, is distant from the Earth.
This also reveals his succession status and relations to the Ptolemaic Kingdom, the kingdom of his late father and being the brief heir to the kingdom of his mother and his uncle Ptolemy Keraunos. Ptolemy Nios or Ptolemy ‘the Son’, [ 41 ] which he was known during his co-regency with Ptolemy II as he was the adopted son and supposed first ...
Counting the total number is difficult, but estimates are that he created a system just as complicated, or even more so. [16] Koestler, in his history of man's vision of the universe, equates the number of epicycles used by Copernicus at 48. [17] The popular total of about 80 circles for the Ptolemaic system seems to have appeared in 1898.
The city was founded by and named after one of the rulers of the Ptolemaic Kingdom, [3] probably Ptolemy III Euergetes (246–221 BC). What had been a small Greek settlement of unknown name that originated in the late 7th century BC and that acted as a port for the city of Barca , 24 kilometres (15 mi) inland, he transformed into a city that ...
Golden ring depicting Ptolemy VI wearing a Greek diadem. Ptolemy VI was the eldest son of Ptolemy V and Cleopatra I.The early reign of Ptolemy V was dominated by the Fifth Syrian War (204–198 BC) against the Seleucid king Antiochus III, who completely defeated the Ptolemaic forces, annexed Coele-Syria and Judaea to his empire, and reduced Egypt to a subordinate position. [2]
Ptolemy XI Alexander II [note 1] (Greek: Πτολεμαῖος Ἀλέξανδρος, Ptolemaĩos Aléxandros) was a member of the Ptolemaic dynasty who ruled Egypt for a few days in 80 BC. He was a son of Ptolemy X Alexander I and Cleopatra Selene.