Undoubtedly, Vince McMahon was risking a lot by putting all his chips behind the concept of WrestleMania. Long having aspirations to take pro wrestling out of smaller arenas into the world of celebrity, McMahon envisioned an annual event which would be the envy of the world, not just other wrestling promoters. 'Mania was born in 1985, but according to some of McMahon's most trusted employees - such as Pat Patterson and Howard Finkel - there were worries that the show could actually ruin the WWF as opposed to help it. No bones about it, this was a risky venture from Vince, but one he truly believed could launch his brand into the annuls of time. As it turned out, he was correct, but boy, things could have been so different. The first WrestleMania may make for tame viewing now, but at the time it was larger-than-life, glitzy and glamorous, and completely changed the attitudes of many towards the WWF. What other truly huge decisions can you think of that helped change the course of wrestling history? Do you agree with the choices on this list? Let us know down in the comments section below!