Original: Unforgiven ( 2008 ) was a professional wrestling pay-per-view ( PPV ) event produced by World Wrestling Entertainment ( WWE ) , which took place on September 7 , 2008 at the Quicken Loans Arena in Cleveland , Ohio .
Simplified: Unforgiven ( 2008 ) was the eleventh Unforgiven professional wrestling pay-per-view event by World Wrestling Entertainment ( WWE ) .