WrestleMania (chronologically known as WrestleMania I) was the first WrestleMania professional wrestling event produced by the World Wrestling Federation. It took place on March 31, 1985 at Madison Square Garden in New York City, New York. The attendance for the event was 19,121 fans. The event was viewed by over one million fans through Closed-circuit television, making it the largest event on closed-circuit television in the United States at the time. It was also available in limited markets on Pay Per View, although WWE lists The Wrestling Classic as their first Pay Per View event. The event was the start of the Rock 'n' Wrestling gimmick, which brought together professional wrestling and the music industry, and matches aired on MTV during the buildup to the event.