Comparing the earliest civilisations

All of these early civilisations left a nomadic lifestyle because they found ways of farming fertile ground near rivers. All of them built permanent places to live like cities, along with other buildings for the purpose of religion. All of these early civilisations traded with people from far away and developed their own forms of writing. All of these early civilisations made bronze and used this metal for tools, weapons and artwork. Despite all these similarities, all of these early civilisations had different styles of writing, building and art.