The earliest humans lead a nomadic existence but they quickly realized settling in a place. The settlements almost always happened in the vicinity of a river like the Nile or Thames or the Ganges. The necessity of water for drinking, cooking, and hygiene purposes has remained constant for humans over the ages. As the humans started building shelters to protect themselves, they realized that going to the river made them vulnerable as a potential attacker or a river monster could be waiting for… Continue