Answer:
Coal
Explanation
Am not a 100% sure but Am pretty sure that its coal, reason why when J.J. earned you know started. Doing all this stuff. That person was most know for coaling, but I just got done leaning about this and that where. He earned his fortune
Ik not much people love reading so i thought a vid was better, sry i dont really know much about india but i found some resources that might help
The site of the fist crusade was in jurusalem