premise: SummerSlam was promoted by WWE in 2015.
hypothesis: SummerSlam is a professional wrestling pay-per-view ( PPV ) event , produced annually in August by professional wrestling promotion WWE . SummerSlam (1992) . It took place on Saturday August 29 , 1992 , at Wembley Stadium , London , England , but did n't air on pay-per-view until Monday August 31 . SummerSlam ( 2015 ) was a professional wrestling pay-per-view ( PPV ) event produced by WWE . It took place on August 23 , 2015 , at Barclays Center in Brooklyn , New York . SummerSlam ( 2016 ) was a professional wrestling pay-per-view ( PPV ) event and WWE Network event produced by WWE .