The past war crash in america occured after WW1 as the result of high inventories of manufactored goods with no local buyers and a drop-off in exports, and falling prices for farm produce
Explanation:
it was one of the first empires to practice religious and cultural tolerance to the people the conquered
it was described as peaceful and had an economic c prosperity
I think there could be many answers. For example Horn of Africa, by sea, or just by trade routes