Ptolemy

Claudius Ptolemy, better known mononymously as Ptolemy, was a Greco-Roman who wrote about a dozen scientific treatises, three of which were important to later Byzantine, Islamic, and Western European science. The first was his astronomical treatise now known as the Almagest, originally entitled Mathēmatikḗ Syntaxis.

Summary from Wikipedia (CC BY-SA 4.0) · Dates from Wikidata (CC0)

Who was born first?

• Ptolemy and Justin Martyr were born the same year
• Ptolemy was born 30 years after Menelaus of Alexandria
• Ptolemy was born 30 years after Theon of Smyrna
• Ptolemy was born 33 years before Cai Yong
• Ptolemy was born 40 years after Nicomachus

Timeline

1. Nicomachuscirca AD 60 – circa AD 120
2. Menelaus of Alexandriacirca AD 70 – circa AD 140
3. Theon of Smyrnacirca AD 70 – circa AD 135
4. Justin Martyrcirca AD 100 – circa AD 165
5. Ptolemy (this page)circa AD 100 – circa AD 170
6. Cai Yong133–192

Related

• Isaac NewtonDecember 25, 1642 – March 20, 1727
• Johann Wolfgang von GoetheAugust 28, 1749 – March 22, 1832
• Immanuel KantApril 22, 1724 – February 12, 1804
• René DescartesMarch 31, 1596 – February 11, 1650
• Marie CurieNovember 7, 1867 – July 4, 1934
• Nicolaus CopernicusFebruary 19, 1473 – May 24, 1543
• Louis PasteurDecember 27, 1822 – September 28, 1895
• Gottfried Wilhelm LeibnizJune 21, 1646 – November 14, 1716