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21 hours ago · 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.
1 day ago · Ptolemy I Soter, a former general and then current satrap of Egypt, was the first to challenge the new system, which eventually led to the demise of Perdiccas. Ptolemy's revolt created a new subdivision of the empire with the Partition of Triparadisus in 320 BC.
3 days ago · Nicolaus Copernicus [b] (19 February 1473 – 24 May 1543) was a Renaissance polymath, active as a mathematician, astronomer, and Catholic canon, who formulated a model of the universe that placed the Sun rather than Earth at its center.
21 hours ago · by The Hellenistic Age History Podcast. submitted on 08 July 2024. Drawn by the prospects of providing service to the Ptolemaic government in either the bureaucracy or the army, or perhaps seeking to settle and farm some of the most productive land in the world, tens of thousands of Greeks would immigrate to Egypt in pursuit of a better life.
3 days ago · Claudius Ptolemy lived in the city of Alexandria in Egypt from about 100 to 170 CE. At that time Egypt was a Roman province and Ptolemy may have been a Roman citizen. A geographer and astronomer, Ptomely's book Geographia, influenced mapmakers on questions such as the size of the earth for centuries.
2 days ago · Eratosthenes, Marinus of Tyre, and Ptolemy successively developed the reference-line principle until a reasonably comprehensive system of parallels and meridians, as well as methods of projecting them, had been achieved.
3 days ago · Kepler’s first publication as imperial mathematician was a work that broke with the theoretical principles of Ptolemaic astrology. Called De Fundamentis Astrologiae Certioribus (1601; Concerning the More Certain Fundamentals of Astrology ), this work proposed to make astrology “more certain” by basing it on new physical and ...
