The very first WrestleMania took place on March 31st, 1985, being the brainchild of WWE CEO Vince McMahon. The event took place in Madison Square Garden, and MSG would also come to host the 10th and 20th of editions of WrestleMania, the most of any venue. The event was wildly successful after featuring a main event of Roddy Piper & Mr. Wonderful vs superstars Hulk Hogan & Mr. T

.

Since the first event, WrestleMania has become WWE's flagship event and the longest running wrestling event in professional wrestling history, becoming a global phenomenon in the process.

 Most WrestleMania events in the last two decades have taken place in large sports arenas in large cities. The most-attended events include WrestleMania III with 93,173 attendees and WrestleMania 32 with 101,763 attendees. The event has currently had 33 editions in the U.S. and 2 outside of the U.S., both being in Canada. 

Since moving to larger stadiums and creating a week long set of events ahead of the event itself, WrestleMania produces a boost in the local economy of the host city. From 2014 to 2017, Forbes named WrestleMania one of the world’s most valuable sports event brands. Likely due to its profitability, in the last decade especially, every year cities put in large bids for the chance to host the next WrestleMania.

The widespread success of WrestleMania helped transform professional wrestling. The annual event has facilitated the rise to stardom of several top WWE wrestlers. Celebrities such as Aretha Franklin, Cyndi Lauper, Muhammad Ali, Mr. T, Mike Tyson, Donald Trump, Floyd Mayweather Jr., Snoop Dogg, Ronda Rousey, Rob Gronkowski, Shaquille O'Neal, and Bad Bunny, among many others, have made special appearances within the events, with some participating in matches.

There is a total number of 39 WrestleMania

The corrent WrestleMania is 39 

The main event match is between Cody and roman my prediction is Cody is going to win.

The only WrestleMania in the event's history to not air live and be held without fans in attendance was WrestleMania 36 in 2020 due to the COVID-19 pandemic; it was the first major professional wrestling event to be affected by the pandemic. It was also the first to be held across two nights, with each WrestleMania since becoming two-night events. WrestleMania 37 in 2021 was the company's first event to have fans in attendance during the pandemic, although at a reduced venue capacity, before the company resumed live touring in July that year with full capacity crowds.

The World Wrestling Federation staged the first WrestleMania on March 31, 1985, at Madison Square Garden in New York City. The main event was a tag-team match between the WWF World Heavyweight Champion Hulk Hogan and Mr. T, accompanied by Jimmy Snuka against the team of Roddy Piper and Paul Orndorff, who were accompanied by Cowboy Bob Orton. The financial and critical success of the event secured the company's status as the most successful promotion in the United States, rising above competitors such as the National Wrestling Alliance and American Wrestling Association. In attendance were business celebrity Sy Sperling and broadcasting executive Tony D'Angelo. WrestleMania 2 was held the following year and took place in three venues across the country.