"Like other settled, agrarian societies in history, those in the Indian subcontinent have been attacked by nomadic tribes throughout its long history. In evaluating the impact of Islam on the sub-continent, one must note that the northwestern sub-continent was a frequent target of tribes raiding from Central Asia. In that sense, the Muslim intrusions and later Muslim invasions were not dissimilar to those of the earlier invasions during the 1st millennium."
<span>Richard M. Frye, "Pre-Islamic and Early Islamic Cultures in Central Asia", in </span>Turko-Persia in Historical Perspective<span>, ed. Robert L. Canfield (Cambridge U. Press c. 1991), 35–53.</span>"
So, MUSLIMS is the answer, does it have this option?
Because countries realized if they were economically tied to other countries if a war broke out their economy would be ruined.
Answer:
Flooding from these rivers largely impacted the development of Sumerian society, both negatively and positively. Floods deposited minerals such as silt which brought fertile soil, but they were also largely destructive. This constant flooding pushed innovation forward, Sumerian farmers created the agricultural technique of irrigation to hold back the flood waters while still benefiting from their minerals. As more areas opened up for farming, it allowed for further expansion and a widespread surplus of crops; furthering both technological & agricultural development.
