Ptolemy (85 - 165) - Biography - MacTutor History of Mathematics

Ptolemy was the most influential of Greek astronomers and geographers of his time. He propounded the geocentric theory of the solar system that prevailed for 1400 years.

Hebrew Illuminated Manuscripts Labban : Medieval Text Manuscripts

Ptolemy, Accomplishments, Biography, & Facts

Early Proofs of the Pythagorean Theorem by Leonardo Da Vinci, Ptolemy, Thabit ibn Qurra, and Garfield - Owlcation

Timeline of Islamic science and engineering

Hypatia, Diophantus and Ptolemy — Living Math

Timeline Project by Natalie Tuites

Hypatia - Wikipedia

Gal Ptolemy

Nicolaus Copernicus - Wikipedia