First there were 8 crusades
Where Jesus lived and taught
Common people led by Peter, then he got the kings involved
Irrigation: The Egyptians developed systems of irrigation to make the most of the Nile's water, they diverted flood waters from cities to prevent them from flowing. I<span>rrigation was crucial to their agricultural success, but regardless, there were no statewide regulations on water control. Irrigation was the responsibility of local farmers.
That's all I know I hope it helped! :) </span>