May 21 history

1952

Los Angeles, California:
- Lou Thesz defeated Baron Michele Leone to merge the California-version of the World Title with the National Wrestling Alliance and
  National Wrestling Association World Titles

1966

Chicago, Illinois:
- In a non title match, Dick the Bruiser beat AWA Champion Mad Dog Vachon
- Chris Tolos beat the Crusher dq
- The Assassins beat Moose Cholak & Wilbur Snyder
- The Destroyer drew Pat O'Connor

1970

Kansas City, Kansas:
- Roger Kirby and Pat O'Conner wrestled to a draw and in a Fence Match
- Danny Little Bear defeated Harley Race via DQ

1974

Tampa, Florida:
- Bill Watts beat Buddy Colt
- Pak Song beat Dusty Rhodes by countout
- Buddy Roberts & Jerry Brown beat Danny Hodge & Don Muraco
- AWA Champion Verne Gagne beat Red Beard
- Ron Fuller beat Johnny Valentine dq
- Les Thornton beat Kevin Sullivan

1976

St. Louis, Missouri:
- Jack Brisco and Gene Kiniski defeated NWA Champion Terry Funk and Dory Funk Jr
- Missouri Champion Bob Backlund defeated Roger Kirby
- Harley Race defeated Jerry Brisco
- Wilbur Snyder and Ray Candy defeated Killer Karl Krupp and Tank Patton via DQ.
- Hubert Gallant defeated Buddy Wayne
- Ronnie Etchison defeated David Shultz

1982

Richmond, Virginia:
- Wahoo McDaniel defeated Sgt. Slaughter for the United States Heavyweight Title

Chicago, Illinois:
- AWA Tag Team Champions Greg Gagne & Jim Brunzell beat Jerry Blackwell & Sheik Adnan
- Bobby Duncum beat Tito Santana

1983

Chicago, Illinois:
- AWA Champion Nick Bockwinkel no contest with Jerry Lawler
- Jesse Ventura beat Rick Martel
- Ken Patera & Jerry Blackwell beat Mad Dog Vachon & Baron Von Raschke
- Jim Brunzell beat Blackjack Lanza
- Mike Graham beat Spike Huber
- Wilbur Snyder beat Rene Goulet
- Buck Zumhofe beat Steve Regal

1985

Don Owens 60th Anniversary show: Portland, Oregon:
- NWA Champion Ric Flair went to a draw with Billy Jack Haynes
- AWA Champion Rick Martel beat Mike Miller
- Curt Hennig & Larry Hennig beat AWA Tag Team Champions Road Warriors via dq
- Roddy Piper beat Buddy Rose
- Sgt. Slaughter beat Kendo Nagasaki
- Bobby Jaggers & Ricky Vaughn beat Tim Flowers & Chris Colt
- Karl Steiner beat Steve Simpson
- Jerry Grey drew Rocky Ventura
- Ed Wiskowski beat Billy Two Eagles

1986

Tampa, Florida:
- The White Ninja (Keiji Mutoh) defeated Kendall Windham for the Florida Heavyweight Title

1988

Memphis, Tennessee:
- AWA Champion Jerry Lawler beat Bill Dundee
- Robert Fuller beat Jeff Jarrett
- Bruise Brothers beat Cuban Choir Boys
- Max Pain beat Brickhouse Brown dq
- Gary Young drew Scott Steiner
- Billy Travis beat Doug Gilbert dq
- Tommy Gilbert beat Tom Brandi

1991

Joplin, Missouri:
- Steve Ray defeated TC Carter
- The Junkyard Dog & Steve Ray defeated Rip Morgan & Jack Victory
- WCW TV Champion Bobby Eaton pinned Terrance Taylor
- WCW Tag Team Champions Rick & Scott Steiner defeated Arn Anderson & the Angel of Death
- Sting defeated Barry Windham via disqualification when Arn Anderson interfered

Sioux City, Iowa:
- Ricky Morton pinned Black Bart
- Dustin Rhodes pinned Moondog Rex
- The One Man Gang pinned Big Josh
- Black Blood pinned Sam Houston
- WCW US Tag Team Champions Michael Hayes & Jimmy Garvin defeated Tracy Smothers & Steve Armstrong
- WCW US Champion Lex Luger pinned Nikita Koloff
- El Gigante defeated WCW World Champion Ric Flair via count-out

1992

Inglewood, California:
- Tom Zenk & Marcus Alexander Bagwell defeated Greg Valentine & Mike Graham
- Van Hammer pinned JT Southern
- Ron Simmons pinned Cactus Jack
- Dustin Rhodes pinned Mr. Hughes
- WCW Light Heavyweight Champion Brian Pillman pinned Scotty Flamingo
- WCW Tag Team Champions Rick & Scott Steiner defeated Arn Anderson & Larry Zbyszko (sub. for Bobby Eaton)
- Nikita Koloff pinned Terry Taylor
- WCW World Champion Sting pinned WCW US Champion Rick Rude
- Ricky Steamboat pinned Steve Austin

1993

Philadelphia, Pennsylvania:
- Keith & Kent Cole defeated Joey Maggs & Bob Starr
- Erik Watts defeated Wrecking Crew Fury
- Dustin Rhodes defeated Maxx Payne
- Maxx Payne defeated Kensuke Sasaki
- Arn Anderson defeated Bobby Eaton
- NWA World Champion Barry Windham defeated Ricky Steamboat (sub. for Van Hammer)
- Sting & Davey Boy Smith defeated WCW World Champion Big Van Vader & Rick Rude via disqualification

1994

Morristown, Tennessee:
- Tracy Smothers defeated Killer Kyle
- Chris Jericho & Lance Storm defeated Well Dunn
- The Dirty White Boy defeated Kendo the Samurai via disqualification
- Randy Savage, Ricky Morton & Robert Gibson (w/ Bob Armstrong) defeated Chris Candido (w/ Tammy Sytch), Brian Lee, & Bruiser Bedlam
  (w/ Jim Cornette)

1995

WCW Slamboree: St. Petersburg, Florida:
- The Blue Bloods (Lord Steven Regal and Earl Robert Eaton) defeated Los Especialistas (Especialista I and Especialista II)
- Steve Austin defeated Eddie Jackie
- Sgt. Craig Pittman defeated Mark Starr
- Meng defeated Brian Pillman in a WCW United States Championship tournament quarterfinal match
- The Nasty Boys defeated Harlem Heat to win the WCW World Tag Team Title
- Kevin Sullivan defeated The Man With No Name
- Wahoo McDaniel defeated Dick Murdoch
- The Great Muta defeated Paul Orndorff	to retain the IWGP Heavyweight Championship
- Arn Anderson defeated Alex Wright to retain the WCW World Television Championship
- Meng fought Road Warrior Hawk to a double countout
- Sting defeated Big Bubba Rogers in a "Lights Out" match
- Hulk Hogan and Randy Savage (with Jimmy Hart and The Renegade) defeated Ric Flair and Vader (with Arn Anderson)

Trois Riveres, Quebec, Canada:
- Jeff Jarrett defeated WWF Intercontinental champion Razor Ramon to win the title

2000

WWF Judgement Day: Louisville, Kentucky:
- The British Bulldog defeated Joey Abs
- Essa Rios and Lita defeated Kaientai (Taka Michinoku and Funaki)
- The Godfather defeated D'Lo Brown	Singles match
- Too Cool (Scotty 2 Hotty, Grand Master Sexay, and Rikishi) defeated Team ECK (Kurt Angle, Edge, and Christian)
- Eddie Guerrero (with Chyna) defeated Perry Saturn and Dean Malenko in a triple threat match to retain the WWF European Championship
- Shane McMahon defeated Big Show in a Falls Count Anywhere match
- Chris Benoit defeated Chris Jericho in a submission match to retain the WWF Intercontinental Championship
- D-Generation X (Road Dogg and X-Pac) (with Tori) defeated The Dudley Boyz (Bubba Ray and D-Von Dudley)in a tag team tables match
- Triple H (with Stephanie McMahon-Helmsley) defeated The Rock 6 falls to 5 in an Iron Man match to win the WWF Championship

2001

San Jose, California:
- Chris Jericho and Chris Benoit defeated Steve Austin and Triple H for the WWF World Tag Team Titles
- The Big Show defeated WWF Hardcore Champion Rhyno to win the title

2006

WWF Judgement Day: Phoenix, Arizona:
- Matt Hardy defeated Simon Dean
- Brian Kendrick and Paul London defeated Joey Mercury and Johnny Nitro to win the WWE Tag Team Championship
- Chris Benoit defeated Finlay
- Jillian Hall defeated Melina
- Gregory Helms defeated Super Crazy to retain the WWE Cruiserweight Championship
- Mark Henry defeated Kurt Angle
- Booker T won the 2006 King of the Ring tournament by defeating Bobby Lashley in the finals
- The Great Khali (with Daivari) defeated The Undertaker
- Rey Mysterio defeated John "Bradshaw" Layfield to retain the World Heavyweight Championship

2017

WWE Backlash: Chicago, Illinois:
- Tye Dillinger pinned Aiden English
- Shinsuke Nakamura pinned Dolph Ziggler
- The Usos retained the tag titles over Tyler Breeze & Fandango
- Sami Zayn pinned Baron Corbin
- Natalya & Tamina & Carmella beat Charlotte Flair & Naomi & Becky Lynch
- Kevin Owens beat A.J. Styles via count out to retain the U.S. title
- Luke Harper pinned Erick Rowan
- Jinder Mahal pinned Randy Orton to win the WWE title

NJPW Super Juniors Tournament: Kira Messe:
- Will Ospreay beat Taka Michinoku
- Marty Scurll beat Jushin Liger
- Taichi pinned Dragon Lee
- Ricochet pinned Hiromu Takahashi