What did Frederick Jackson turner mean by a safety valve of social does content? What information from the text helps you understand the importance of migration to western territories in American society during this period

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.

answer; validity;