Some 6.000 years ago, some Neolithic villages became cities as a result of agricultural and commercial prosperity. These civilizations invented writting.
The first great civilizations developed along large rivers surrounded by fertile land:
Mesopotamia: River Tigris and Euphrates
India: Indus River
China: Huang He and Yangtze Rivers
Egypt: Nile River
The Egyptian civilization developed 5.000 years ago along River Nile. This area is basically a desert surrounded by the Nile River, whcih runs from south to north.
The Nile provided:
Fertility to the land: prosperous agriculture
A way of transportation and communication
A geographical and administrative organization: Lower Egypt (north), Upper Egypt (south).
Ancient Egypt: River Nile
River Nile is the longest river in the world, around 7000 km long. It was essential to the development of the Egyptian civilization.