My guess on this question would be : Cold War .During Cold War USSR and USA were investing huge money in defenses and military technology to show each other they are powerful. Though its called Cold 'War' there was no war. There were no fighting. Just show.
Answer:
Ancient Egyptians depended on the Nile River to create a water system for agricultural purposes. Ancient Egyptians were technologically advanced enough to create a system to bring water to farms.
Ajiviia because it had more than one founder
