25th Anniversary of WWE WrestleMania Regresando el evento mas espectacular del 2009. El 25 aniversario de WWE WrestleMania Domingo, 5 de abril, On March 31, 1985, the WrestleMania legacy was born at Madison Square Garden in New York City. This sold-out event was the origin of what has become the greatest sports-entertainment franchise in American history. In 2009, this franchise will celebrate 25 years This will be the biggest event in company history.