Conversation so far:
When Ali's career start?
Clay made his professional debut on October 29, 1960.
What did he do?
winning a six-round decision over Tunney Hunsaker.
//what was the decisions about?
fights.
What are some interesting aspects about this article?
From then until the end of 1963, Clay amassed a record of 19-0 with 15 wins by knockout.

Question: Did he break any other records?
Self-contained rewrite: Did Muhammad Ali break any other records aside from the record of 19-0 with 15 wins by knockout?