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King Menes unified north and south Egypt around 3150 BC to 2613 BC

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The first female pharaoh Hatshepsut ruled from 1473 BC to 1458 BC.

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The first symbols for numbers were used in Egypt.

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Farming settlements in  Indus River Valley Civilization began around 4000 BC or 3000 BC

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The first dynasty of China Xia Dynasty was around from 2070 BC to 1600 BC

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The Egyptian pyramid of Djoser was built from about 2667 to 2648 BC

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Around, 575 BC Thales brings Babylonians mathematical knowledge to Greece

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Around 1950 BC Babylonians first started using quadratic equations

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Abacus is developed around 3000 BC in the Middle East.

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The Egyptian calender was used around 2770 BC.

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Mesopotamia was a region in the eastern Mediterranean. The invention of writing is partially credited to Mesopotamia

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Mesopotamia was a region in the eastern Mediterranean. The invention of writing is partially credited to Mesopotamia