[Cronos]

"Catholics and Lutherans have much shared theology. So much that while we are the “original” Protestants, using that term leads to much confusion on both sides. "

True -- and your details about the history are also absolutely true. Just have to add in that the Muslim power -- the Ottomans were no doubt happy to see Christendom split up.

[redgolum]

Also very true. Granted, the Germanies of the day were the laughing stock of military prowness, but the split and resulting confusion did weaken Europe.