D-GENERATION X

D-Generation X (also known and spelled as Degeneration X, DX and D-X) was a professional wrestling stable in WWE (previously the World Wrestling Federation and World Wrestling Entertainment). The group originated in the midst of the WWF's "Attitude Era" from 1997 to 2000. Their gimmick was that of a gang of rebels who acted and spoke as they pleased, no matter how provocative.
After its original run with members Rick Rude, Chyna, Triple H and Shawn Michaels, the group expanded to become a mainstay of the Attitude Era with new additions X-Pac, the New Age Outlaws and Tori until it disbanded in August 2000. After a teased reunion in 2002, DX reformed in June 2006 as the duo of Triple H and Shawn Michaels for the remainder of the year and again in August 2009 until March 2010, shortly before Michaels' retirement. They reunited at the 2010 Tribute to the Troops for one night only.
According to Triple H, WWF management wanted to keep The Kliq, of which he and Michaels were members, apart, so they were hesitant to pair the duo together at first.DX, however, was officially incarnated on August 11, 1997, as Michaels took on Mankind in the main event of RAW is WAR.
During the match, Triple H and Chyna both interfered on Michaels behalf as the two were feuding with Mankind, towards the end of the match Rick Rude returned to the WWF revealing himself as Michaels bodyguard or "Insurance Policy" after helping Michaels win the match after a chairshot to Mankind.
The following week on the August 18, 1997, RAW, Michaels and Triple H teamed up to take on Mankind and The Undertaker, only to lose the match by disqualification after Michaels used a chair on Undertaker. Michaels would eventually face the Undertaker at In Your House XVII: Ground Zero on September 7, 1997, with Triple H, Chyna, & Rude all interfering on Michaels behalf at certain points during the match. On September 20, 1997 at the WWF One Night Only pay-per-view in Birmingham, England. Along with then-heels, Michaels, Chyna, and Triple H, Michaels' "insurance policy", Rick Rude was also an original member of the group. Triple H and Michaels united when Michaels became a villain after hitting The Undertaker with a chair at SummerSlam
On October 13, 1997, the group officially gave themselves the name "D-Generation X" with Shawn Michaels as the leader. Michaels' autobiography suggests that it was then-WWF head writer Vince Russo who first conceived the moniker for the faction. On-screen, however, the name was taken from Bret Hart, who claimed that Shawn Michaels, Chyna, and Triple H were nothing more than degenerates.