Top 10 Oldest Ancient Civilizations

This isn't a list of best ancient civilization. It's a list of oldest ancient civilizations.
The Top Ten
1 Mesopotamia

It's just the oldest

2 Indus Valley

The Indus civilization was roughly contemporary with the other riverine civilisations of the ancient world: Egypt along the Nile, Mesopotamia in the lands watered by the Euphrates and the Tigris, and China in the drainage basin of the Yellow River and the Yangtze. By the time of its mature phase, the civilisation had spread over an area larger than the others, which included a core of 1,500 kilometres (900 mi) up the alluvial plain of the Indus and its tributaries. In addition, there was a region with disparate flora, fauna, and habitats, up to ten times as large, which had been shaped culturally and economically by the Indus. The civilization with the most urbanized and well-built cities

3 Ancient Egypt

Egypt is older than indus valley. Check again. Egypt was the most advanced and intelligent ancient civilizations. These negroes built the world's first ships, alphabet, paper, writing materials, pyramids, surgery and neuroscience.

4 Maya
5 Ancient China
6 Ancient Greece

Most intelligent civilization. They didn't care for conquering other countries as much as they did for their love of knowledge. because of this they were the greatest writers and philosophers at the time. Socrates, Plato, Aristotle. The valued knowledge over power and that gave them all the power..

7 Ancient Persia
8 Ancient Rome
9 Aztecs
10 Incas