Where were the early river valley civilizations located

The first civilizations formed on the banks of rivers. The most notable examples are the Ancient Egyptians, who were based on the Nile, the Mesopotamians in the Fertile Crescent on the Tigris/Euphrates rivers, the Ancient Chinese on the Yellow River, and the Ancient India on the Indus.

answer: i cant no exerpt

explanation:

abraham lincoln  (february 12, 1809  – april 15, 1865) was an american statesman, politician, and lawyer who served as the 16th  president of the united states  from 1861 until  his assassination  in april 1865. lincoln led the nation through the  american civil war, its bloodiest war and its greatest moral, constitutional, and political crisis.[2][3]  he preserved the  union,  abolished slavery, strengthened the  federal government, and modernized  the u.s. economy.