

Not quite true, 1500 years ago was the dawn of that. The point where they began to expand. And they were absolutely more than just “disjointed nomadic tribes”.
You can see the Rashidun Caliphate after the death of Muhammad in 632 was quite big and united.
https://en.wikipedia.org/wiki/Rashidun_Caliphate
The caliphate’s first 25 years were characterized by rapid military expansion during which it became the most powerful economic and military force in West Asia
And that was the precursor to the Umayyad Caliphate 661–750, that included for instance Spain.
https://en.wikipedia.org/wiki/Umayyad_Caliphate
So 1500 years ago is more accurate than 1000.




Religion is a well of false hope that leads nowhere.