(Ignore This Fam) I'm just answering so I can ask questions.
The Nile river no longer floods because of the Aswan dam built in the 1960s.
At the time the ascetic religious system in India called Jainism, was unequal in that it favored the higher classes and granted them greater spiritual potential/reward. Buddhism became popular because it allowed even the lowly lower classes to reach Nirvana. In other words everyone could reach Nirvana, a place of perfect peace and happiness, much like the Christian idea of heaven.