Simplify the following text for a Grade 6 native English-speaking person.
Original: Extreme Rules is an upcoming professional wrestling pay-per-view ( PPV ) event produced by World Wrestling Entertainment ( WWE ) , which will take place on May 1 , 2011 at the St. Pete Times Forum in Tampa , Florida .
Simplified: Extreme Rules was a professional wrestling pay-per-view ( PPV ) event made by WWE . The event took place May 1 , 2011 at the St. Pete Times Forum in Tampa , Florida .