If you watched wrestling as a child, or as a teenager, or as a fully-grown adult, odds are you know who the Undertaker is.

Standing at 6'10, walking slowly out to the ring as the funeral march music played, sometimes seen carrying an urn and dressed in black with a wide-brimmed hat, we all remember seeing him for the first time and then trying to replicate the Tombstone Piledriver and the Chokeslam, even though the TV expressly said we shouldn't.

Well, last night, the Undertake retired after 33 years in professional wrestling at the age of 55, marking 30 years since he began in the WWE, known back then as the WWF. While The Undertaker didn't take part in a match and simply made an appearance confirming his retirement, it was still an emotional night for wrestling fans around the world.

In an interview with People Magazine, Calaway admitted that "(there) are certain days I think about it being 30 years and how long that is, then there are other days where it just seems like a flash."

"It came and it went really, really fast. It just reminds me to soak in the things that I should be soaking in because 30 years goes a lot quicker than you think it does."

Here's the video promo that went out last night during Survivor Series preceding the Undertaker's final farewell.