An important scientist of the Roman Empire. He studied the sky and carefully mapped over 1,000 different stars. He studied the motion of planets and stars and created rules to explain their movements. Educated people in Europe accepted his ideas for centuries.

The Roman Republic became the Roman Empire in 27 BCE when Julius Caesar's adopted son, best known as Augustus, became the ruler of Rome. The Roman Empire, at its height (c. 117), was the most extensive political and social structure in western civilization.

1. An important scientist of the Roman Empire. He studied the sky and carefully mapped over 1,000 different stars. He studied the motion of planets and stars and created rules to explain their movements. Educated people in Europe accepted his ideas for centuries.


Justinian
Ptolemy
Stoicism
(Roman) Vault