Digimon, Lots of it.
Wasn't there a forum game about this?
Digimon rode the success of Pokemon. You can't deny. Yea it had better story telling and all the jazz, but do you think it would of aired in the first place in the US if Pokemon wasn't there?Hell, anime as a whole wouldn't be as popular in North America as it is now if it wasn't for Pokemon.
Here's one. What if Nazi Germany was headed by some one with similar qualities of Hitler....minus the crazy mustard gas stuff. One who wasn't as a humongous anti semitic, and one who was a pioneer in conventional warfare getting technology like the Jet fighters and the STG-44 (first Assault Rifle).
Also, one who knew how to beat the **** out of the Russians.
Hell here's another one. What if Trotsky, not Stalin, became leader of the U.S.S.R after the death of Lenin? Would the U.S.S.R be more prepared, or be in a worse state come WWII.
Also if the plan the allies had after the 2 nukes we're put into effect, would Humanity as a whole be "****ed"? Since it called for Nuclear carpet bombing, followed by invasion, would we obtain super powers?
EDIT: Also....what if Thomas Edison was revealed as the major fraud he was, and Nikola Tesla was given most of the credit he worked on? Would we have more efficient forms of energy? Hell Tesla predicted the Internet 80 years ahead of the time.
Would we have wireless tasers, EMP Guns and lightning shooting out of our hands like Pope Benedict XVI?