A direct democracy is commonly found in small groups of people. A direct democracy is a government run by solely the people, and that the people are in direct control when it comes to voting. It would be uncommon to find a direct democracy within a large group of people, because it would be difficult. :)
Islam was first introduced into South Asia in ad 711, when an Arab naval expedition sailed to the mouth of the Indus River (now in Pakistan) to suppress piracy against Arab shipping
They had a stronger military then they did