How long is 1070 BCE - 330 CE in years

1,400 years

Explanation:

Add 1070 BCE and 330 CE together

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.