I want to know the answer to the following question:
Who founded Stoicism?
All the background I'm provided with is that "Examples include Athenian statesman Demetrius of Phaleron, who had studied in the lyceum; the Spartan king Cleomenes III who was a student of the Stoic Sphairos of Borysthenes and Antigonus II who was also a well known Stoic.". Is that enough to answer the question?