What are three facts about john Williams life?

Please clarify who you mean by "John Williams". There are many famous individuals with that name, including:

* John Williams (composer): Known for scoring iconic films like Star Wars, Jaws, and E.T.

* John Williams (baseball player): Hall of Fame pitcher for the Baltimore Orioles.

* John Williams (artist): American painter known for his landscapes and still lifes.

* John Williams (musician): British jazz pianist and composer.

Once you specify which John Williams you are interested in, I can provide three facts about their life.