Conversation so far:
Where was Aesop born?
The earliest Greek sources, including Aristotle, indicate that Aesop was born around 620 BCE in Thrace at a site on the Black Sea coast which later became the city Mesembria.
What did Aesop do for a living?
From Aristotle and Herodotus we learn that Aesop was a slave in Samos and that his masters were first a man named Xanthus and then a man named Iadmon

Question: Was he a slave his whole life?
Self-contained rewrite: Was Aesop a slave his whole life?