Simplify the following text for a Grade 11 native English-speaking person.
Original: WWE released a complete DVD box set entitled Royal Rumble : The Complete Anthology , which showcases every Royal Rumble event in its entirety , up to the 2007 Royal Rumble , on March 13 , 2007 .
Simplified: On March 13 , 2007 , WWE released a full DVD box set called Royal Rumble : The Complete Anthology , which showcases every Royal Rumble event in its entirety .