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
Was Aesop a slave his whole life?
Aesop must have eventually been freed, because he argued as an advocate for a wealthy Samian.
Is anything else known about Aesop's life besides his status as a freed slave?
Aesop went to Delphi on a diplomatic mission from King Croesus of Lydia
Did Aesop stay in Delphi?
Aesop met his end in the city of Delphi.

Question: When did he die?
Self-contained rewrite: When did Aesop die?