" In any event, there was no “fall” into “Dark Ages.” Instead, once freed of the bondage of Rome, Europe separated into hundreds of independent “statelets.”16 In many of these societies progress and increased production became profitable, and that ushered in “one of the great innovative eras of mankind,” as technology was developed and put into use “on a scale no civilization had previously known. "

― Rodney Stark , The Triumph of Christianity: How the Jesus Movement Became the World's Largest Religion