Mankind, Ken Shamrock, Big Show & Test all came together because they felt they were getting screwed by the Corporation..
~~~The gimmick was a partial shot at Jesse Ventura, who tried to get a 'union' started in wrestling many times in the past..
How The Big Show joined The Union:
March 28, 1999 - Wrestlemania 15: Mankind defeated "Big Show" Paul Wight by DQ to earn the right to referee the main event..
~~~Vince McMahon came down and yelled at Paul Wight for messing up and getting disqualified..
~~~Vince McMahon said that Paul Wight was a "nobody" so Wight hauled off and knocked McMahon out!
~~~Vince McMahon had The Big Show arrested!
How Ken Shamrock joined The Union:
March 29, 1999 - RAW: The Ministry abducted Stephanie McMahon and held her hostage until Ken Shamrock found her..
April 5, 1999 - RAW: The Ministry ambushed and abducted Ken Shamrock to punish him for ruining their plan last week..
~~~The Ministry brought out Ken's sister Ryan Shamrock to the stage and strapped her to the symbol and sacrificed her!
How Vince McMahon joined The Union:
Vince McMahon, who had been ousted from the Corporation, briefly led the Union into battle with the Corporation..
April 12, 1999 - RAW: Vince McMahon was slapped by Shane McMahon, who claimed that his father had forgotten his priorities..
~~~Vince McMahon was later revealed as the "Higher Power" focusing his attention of his enemy Stone Cold Steve Austin..
~~~The Ministry abducted Debra and Undertaker threatened to sacrifice her, but Ken Shamrock ran down with a baseball bat..
~~~The Undertaker told Ken Shamrock that Ryan Shamrock was in the basement, so he ran down to rescue her..
~~~It was only a trap though, as The Ministry ambushed and attacked Ken Shamrock & Mankind in the basement..
~~~Ken Shamrock called out Undertaker, but The Ministry attacked him, and Triple H & Bossman made the save......
~~~Suddenly though, Triple H & Bossman attacked Ken Shamrock by orders of Shane McMahon..
April 18, 1999 - Heat: Ken Shamrock defeated Test and Big Boss Man in a handicap match...
How Mankind joined The Union:
April 19, 1999 - RAW: The Big Show beat Viscera by DQ (Taker & Viscera double-teamed Big Show until Mankind made the save!)
April 25, 1999 - Backlash: Mankind defeated The Big Show in a BOILER ROOM BRAWL..
~~~Mankind escaped the Boiler Room to win the match only to be attacked by The Big Bossman & Test..
~~~The Big Show emerged from the Boiler Room to make the save for Mankind..
How Test joined The Union:
The Big Bossman turned on Test, at the orders of Shane McMahon, so Test joined the Union..
Steve Austin and The Rock were "implied" members, but never stood with them because of their 'loner' gimmicks..
April 26, 1999 - RAW: The Undertaker had an "Unholy Wedding" to Stephanie McMahon, who was strapped to the Symbol..
~~~Ken Shamrock and The Big Show tried to stop the ceremony but they were both taken out by the Ministry..
~~~Stone Cold Steve Austin was the one who emerged and saved Stephanie McMahon from the unholy wedding..
May 23, 1999 - Over The Edge: The Union defeated the Corporate Ministry (Acolytes / Viscera/ Big Bossman)..