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The fact that Ptolemy did not represent an eastern coast of Asia made it admissible for Behaim to extend that continent far to the east. Behaim’s globe placed Marco Polo’s Mangi and Cathay east of Ptolemy’s 180th meridian, and the Great Khan’s capital, Cambaluc ( Beijing ), on the 41st parallel of latitude at approximately 233 degrees East.
A History of the Jews and Judaism in the Second Temple Period. Volume 2 – The Coming of the Greeks: The Early Hellenistic Period (335 – 175 BC). T&T Clark. ISBN 978-0-567-03396-3. Grainger, John D. (2010). The Syrian Wars. Brill. pp. 281– 328. ISBN 9789004180505. Hölbl, Günther (2000). A History of the Ptolemaic Empire. Translated by ...
The Ptolemy world map is a map of the world known to Greco-Roman societies in the 2nd century. It is based on the description contained in Ptolemy 's book Geography , written c. 150 . Based on an inscription in several of the earliest surviving manuscripts, it is traditionally credited to Agathodaemon of Alexandria .
The Earth and Moon are much closer to being a binary planet; the center of mass around which they both rotate is still inside the Earth, but is about 4,624 km (2,873 miles) or 72.6% of the Earth's radius away from the centre of the Earth (thus closer to the surface than the center).
Ptolemy I and other early rulers of the dynasty were not married to their relatives, the childless marriage of siblings Ptolemy II and Arsinoe II [22] being an exception. The first child-producing incestuous marriage in the Ptolemaic dynasty was that of Ptolemy IV and Arsinoe III , who were succeeded as co-pharaohs by their son Ptolemy V , born ...
Ptolemy I Soter (Ptolemy, son of Lagus): 304–285 BC; Ptolemy II Philadelphus: 284–247 BC; Ptolemy III Euergetes: 246–222 BC; Ptolemy IV Philopator: 221–205 BC; Ptolemy V Epiphanes: 204–181 BC; Ptolemy VI Philometor: 180–146 BC; Ptolemy VIII Euergetes II: 145–117 BC; Ptolemy IX Soter II: 116–81 BC; Ptolemy XII Neos Dionysus: 80 ...
Ptolemy discussed and favored this revised figure of Posidonius over Eratosthenes in his Geographia, and during the Middle Ages scholars divided into two camps regarding the circumference of the Earth, one side identifying with Eratosthenes' calculation and the other with Posidonius' 180,000 stadion measure, which is now known to be about 33% ...
For the outer planets, the angle between the center of the epicycle and the planet was the same as the angle between the Earth and the Sun. Ptolemy did not predict the relative sizes of the planetary deferents in the Almagest. All of his calculations were done with respect to a normalized deferent, considering a single case at a time.