Night of Champions (2015)

The 2015 Night of Champions was a professional wrestling pay-per-view (PPV) and livestreaming event produced by WWE. It was the ninth annual Night of Champions and took place on September 20, 2015, at the Toyota Center in Houston, Texas, marking the second Night of Champions held at this venue, after Vengeance: Night of Champions in 2007. As per the theme of the event, every championship promoted on WWE's main roster at the time was defended.

Source: Wikipedia — Night of Champions (2015) (CC BY-SA 4.0)