Conversation so far:
Where did Phil Mickelson go to college?
Phil Mickelson attended Arizona State University in Tempe on a golf scholarship.
How long did Phil Mickelson attend Arizona State University?
Phil Mickelson graduated from Arizona State University in June 1992.
Were there any other major golfers from Arizona State University besides Phil Mickelson?
When did Phil Mickelson move on to professional golf?
Phil Mickelson graduated from Arizona State University in June 1992 and quickly turned professional.
Are there any other interesting aspects about the Phil Mickelson article besides quickly turning professional after graduating from Arizona State University in June 1992?
Phil Mickelson won many PGA Tour tournaments from 1992-2003, including the Byron Nelson Golf Classic and the World Series of Golf in 1996 and more.
Has Phil Mickelson ever won any other tournaments besides his many PGA Tour tournaments from 1992-2003, including the Byron Nelson Golf Classic and the World Series of Golf in 1996?
Phil Mickelson's 2000 Buick Invitational win ended Tiger Woods' streak of six consecutive victories on the PGA tour.

Question: What year did he graduate?
Self-contained rewrite: What year did Phil Mickelson graduate?