Aesop is said to be a slave who lived in Greece in the 6th century BC. He has been remembered for his wonderful stories, called fables. He used animal characters to show human behavior and to teach a lesson, or a moral, about that behavior. One of his most popular tales, for example, is "The Tortoise and the Hare," with the moral "It is not just speed that wins the race."
Aesop's fables spread throughout the world by word of mouth, retold for hundreds of years. Eventually they were written down and have been translated into many languages.