5 years you have to redo it every 5 years I think
Answer:
It shaped ancient Egypt to a more complex society
Explanation:
they used the Nike river for transportation and to trade with each other , they used it for irrigation, they used it to fish and drink from it, they used it to grow crops and they also used it to see if a man was guilt or not chosen by the gods.
His unknown secret weapon was disease.
When Cortez and his army invaded aztecs, a couple of his men were infected with smallpox.
Since the aztecs did not possess any immunity for it, the majority of their people were weakened by the disease, which make it easier for cortez army to conquer their region.