What were new fads, inventions, and products that hit America in the 1920's? *

Some new fads, inventions, and products that hit America in 1920's were..

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; correlational;