Michael Phelps won events from the 2004 Summer Olympics to the @016 Olympics, after which he retired.
Michael Phelps went to the Olympics in the years 2000, 2004, 2008 and is planning on going in 2012.
No he did not
Michael Phelps has 23 in total, 8 is how much he won in a single Olympics.
He's not in the olympics