Aesop (/ˈiːsɒp/ EE-sop; Ancient Greek: Αἴσωπος, Aisōpos, c. 620–564 BCE) was an Ancient Greek fabulist or story teller credited with a number of fables now collectively known as Aesop's Fables. Although his existence remains uncertain and (if he ever existed) no writings by him survive, numerous tales credited to him were gathered across the centuries and in many languages in a storytelling tradition that continues to this day.