Short answers, pulled from the story.
Aesop was a slave and storyteller who lived in ancient Greece between 620 and 564 BCE. The Greek historian Herodotus described him as "Aesop the fable writer," and both Aristophanes and Plato referenced him and his stories in their own writings.
No. Modern scholars hold that Aesop did not originate all the fables credited to his name. The fables were not collected until roughly three centuries after his death, and by then stories from West Asian, Indian, Jewish, and other traditions had been added. Any fable without a known literary source tended to be ascribed to Aesop by default.
The first printed version of Aesop's Fables in English was published on the 26th of March 1484 by William Caxton. It was one of the earliest books printed in English and drew on Heinrich Steinhöwel's landmark German-Latin edition published around 1476.
Portuguese missionaries introduced the fables to Japan in 1593 under the title Esopo no Fabulas, translating the Latin into Japanese. In China, the Jesuit missionary Nicolas Trigault conveyed 38 fables orally in 1625, recorded by the Chinese academic Zhang Geng. In the Americas, 47 fables were translated into the Nahuatl language in the late 16th century, adapted to incorporate Aztec concepts and rituals.
The philosopher John Locke first formally advocated targeting children as a special audience in Some Thoughts Concerning Education, published in 1693. Earlier, Gabriele Faerno's Centum Fabulae of 1564 had been commissioned by Pope Pius IV with the stated aim that children could learn moral and linguistic purity from the same book.
Modern scholarship has found fables and proverbs of Aesopic form in ancient Sumer and Akkad dating as far back as the third millennium BCE. The Buddhist Jataka tales and the Hindu Panchatantra share roughly a dozen stories with the Aesopic corpus, though debate continues over the direction of influence.