Early Aslamic History

i think we have to consider the rise of islam, mean, the birth of the faith with mohammed. The sheer territorial conquests of the early caliphs and their rise in military power are absolutely astonishing as is. And what's comparable with rome, i think, as much as the extent of the conquests, is the historical imprint that the firstislamic color fates left on the world,. which we can still feel to day.