What is night of champions 2012?

Night of Champions 2012 was a professional wrestling pay-per-view event produced by WWE. It took place on September 16, 2012, at the TD Garden in Boston, Massachusetts. The event featured all of WWE's championship titles being defended on the card, hence the name "Night of Champions."

The main event of the night was a Triple Threat match for the WWE Championship between CM Punk, John Cena, and Big Show. Other matches on the card included Sheamus defending the World Heavyweight Championship against Alberto Del Rio, Kane and Daniel Bryan defending the Tag Team Championships against R-Truth and Kofi Kingston, and Antonio Cesaro defending the United States Championship against Zack Ryder.

In the end, CM Punk retained his WWE Championship by defeating John Cena and Big Show in the main event. The event received generally positive reviews from critics and fans, with many praising the quality of the matches and the storytelling throughout the night.