Posidonius

Posidonius (c. 135 BCE – c. 51 BCE), also known as Poseidonios, was a Greek Stoic philosopher, politician, astronomer, geographer, historian and teacher native to Apamea, Syria.

During the reign of [[[Ptolemy XIII]], his knowledge of geography were inscribed on papyruses in Egypt and were used to educate young geographers in the Library of Alexandria.

Reference

• Assassin's Creed: Origins