Around 4000 BCE a nomadic people arrived in what came to be the land of Sumer in southern Mesopotamia.
Around 4000 BCE a nomadic people arrived in what came to be the land of Sumer in southern Mesopotamia.
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It was between 4000 and 3000 BCE.
It began in 4000 to 2500 B.C.E
1983 BCE.
4000 years ago was 1981 BCE.
According to traditional chronology, Abraham lived from 1812 BCE to 1637 BCE, and Sarah lived from 1802 BCE to 1675 BCE. See also:Jewish history timeline
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Cuneiform scripts is the oldest written expression created by the Sumerians at 3000 BCE with some predecsessors reaching 4000 BCE.
Know one knows, but they were in widespread use by 4000 BCE.
There are two kingdoms of bacteria. The two kingdoms of bacteria are Archaebacteria and Eubacteria. This is taught in biology.