1) In the classical era, his figure enjoyed great popularity but was surrounded by legendary elements that make it difficult to establish any information about his biography accurately.
2) The first reference that is known about Aesop is a kylix of red figures dated around the year 470 BC. Where he appears depicted talking to a fox.
3) He appears in literary sources of classical Greece quoted by Herodotus, Aristophanes, Aristotle, and Plato.
4) Socrates memorized all the Fables of Aesop.
5) Heraclio of Pontus mentions him as a natural person of Thrace, but Callimachus says he was Sardes.
6) The fables of Aesop have their origin in the Archaic period. It was compiled in the 4th century BC.
7) The main collection of fables attributed to Aesop (from which many modern editions are based) is the so-called Augustana.
8) The interest in the fables of Aesop was continuous throughout the antiquity and did not decay during the Middle Ages.
9) During the Renaissance, the Fables of Aesop and those of Phaedrus became a mandatory book for all universities.