Claudius Ptolemy was a Greek mathematician, astronomer and geographer who lived in the Egyptian city of Alexandria while under the rule of the Roman Empire. Much of medieval astronomy and ...

An international conference on the origins of galaxies pays tribute to the pioneering scientific cooperation between Muslims, ...

The first great attempt to make mapping realistic came in the second century A.D. with Claudius Ptolemy. He was an astronomer and astrologer obsessed with making accurate horoscopes, which ...

Ptolemy’s Geography, 150 A.D. Often referred to as the “father of geography,” Claudius Ptolemy was the first person to ...

Now researchers have managed to recover the text written by Ptolemy on a parchment that suffered such a previous recovery attempt. Outermost six rings of the meteoroscope, not to scale.

Greek astronomer Claudius Ptolemy, who lived in Egypt, built upon Babylonian knowledge in his geocentric model of the universe. This model, which placed the Earth at the center of the universe ...

Lawrence University & Buerger Coin Collection Gold Octodrachm of Ptolemy III Euergetes... Gold Octodrachm of Ptolemy III Euergetes, Egypt, 27.81 g. Ptolemy III Euergetes (Benefactor) carried on ...