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5000 BCE 4500 BCE 4000 BCE 3500 BCE 3000 BCE 2500 BCE 2000 BCE 1500 BCE 1000 BCE 500 BCE
5000 BCE: Cuneiform script developed by Sumerians.
3500 BCE: First written evidence of religion in Sumerian cuneiform.
3500 BCE: First written evidence of religion in the world recorded on Sumerian tablets.
3000 BCE: Cuneiform script refined.
2285 BCE - 2250 BCE: Life of Enheduanna, daughter of Sargon of Akkad, and world's first author known by name.
2150 BCE - 1400 BCE: The Sumerian Epic of Gilgamesh written on clay tablets.
1900 BCE - 1600 BCE: Composition of The Descent of Inanna.
1900 BCE - 1600 BCE: The Descent of Inanna written down.
1640 BCE - 1700 BCE: Written form of the Atrahasis Myth of the Great Flood.
1640 BCE - 1700 BCE: The Atrahasis written down.
647 BCE - 629 BCE: Extensive collection of clay tablets acquired known as Ashurbanipal's Library at Nineveh.
100 BCE: Cuneiform abandoned for alphabetic script.
100 BCE: Utu/Shamash mentioned less frequently as cuneiform writing is replaced by the alphabet.