Christianity, decadence, the metal lead in the water supply, monetary trouble, and military problems caused the fall of rome.
"natural resources" "natural resources" and a thriving "labor force" would all be factors. It should also be noted that the textile industry was already doing well.
John D. Rockefeller, he created Standard oil and used a system of horizontal integration, which really hurt the consumer but it made him rich. He was basically a terrible person but a genius businessman (he would have been a trillionaire by today's standards) :)
Babur,Akbar,Shah Jahan,Jahangir,Shah