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  1400 BC-Hatshepsut became pharaoh
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  1500 BC- Ahmose unified country into one
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  1700 BC- Hyksos rulers took control of Delta region of egypt.
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  1900 BC- Agricultural development of the Faiyum,
Earliest parts of Temple of Karnak built,
Egyptians control Nubia - 
  
  2100 BC- Mentuhotep II gained control of entire country, and colided lower and upper egypt into one.
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  2200 BC-Many kings ruled egypt during this time period , due to death and unlawfully unfollwed rules.
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  2500 BC- The Pyramids of Giza was built in this time period, It was the greatest pyrimid built , hense the name "The great pyrimid of Giza".
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  2700 BC-The first stone modeled pyrimid was built , it took 2.3 million stones to build and 6.5million tons.
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  3100 BC- Hieroglyphic script was developed menes unified Upper and Lower Egypt
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  3500 BC- The early settlers settled in the Nile Valley