What changes, good and bad, occurred when the europeans arrived in the americas

7. how did the early egyptians use the flooding of the nile river to their advantage? they diverted the water to flood their enemy's lands and destroy their crops. they created an easier way to travel to the mediterranean sea and the indian ocean. they established a new water-based athletic event for the ancient olympics in greece. they devised an innovative irrigation system, which created a surplus of food.

What emperor was given credit for having the aqueducts built

Who was the top of the feudal system hierarchy