#8. The nWo ignite the Monday Night War.

Ted Turner's WCW upped the ante in their competition with WWE by running their own show against the flagship production of Raw. Monday Nitro debuted in 1995 to decent ratings that still lagged behind Raw's.
That all changed with the advent of the nWo. In this era, kayfabe was still alive and well, and many fans believed that the nWo was legitimately out to invade and destroy WCW. The whole linchpin of the phenomenon was when perennial hero Hulk Hogan turned heel and joined the wicked invaders Hall and Nash.
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The result was nearly three years of ratings dominance, fights to sign the biggest name talent, and the most exciting era of wrestling before or since. The Monday Night War would rage on until 2001, when Vince McMahon would purchase the struggling WCW organization and shut down Nitro.