33
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 30, 2025
2933114
777547
2
Public Timelines
FAQ

Ptolemy (jan 1, 90 – jan 1, 168)

Description:

Roman, ethnically Greek or Hellenized Egyptian.
Claudius Ptolemy was a 2nd-century Greek mathematician, astronomer, and geographer famous for his controversial geocentric theory of the universe. He compiled a star catalog and the earliest surviving table of a trigonometric function and established mathematically that an object and its mirror image must make equal angles to a mirror. (Wikipedia, 2023)

Added to timeline:

Date:

jan 1, 90
jan 1, 168
~ 78 years

Images: