The earliest known civilizations arose in Mesopotamia between
the Tigris and Euphrates rivers in modern-day Iraq, Persia in
modern day Iran, the Nile valley of Egypt, the Indus Valley
region of modern-day Pakistan and North India, and the parallel
development of Chinese civilizations in the Huang He and Yangtze
River valleys of China. Smaller civilizations arose in Elam in
modern-day Iran, and on the island of Crete in the Aegean Sea,
as well as the Olmec civilization and the Caral civilization in
modern-day Mexico and Peru. The Mesopotamian civilization of
Sumer is officially is believed to have begun around 4000-3500
BC. It ended at 2334 BC with the rise of Akkad, and is the
world's first civilization. The Egyptian civilization of the
Nile Valley started at around 3200 BC. It ended at around 343
BC, at the start of the Achaemenid dynasty's control of Egypt.
This is one of the three oldest civilizations in the world.
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