A series of fortresses dating from Egypt's Middle Kingdom through to the New Kingdom has been found in the eastern delta of the Nile. This collection of walls and fortresses was mentioned in the tale of Sinhue (a famous story dating to the Middle Kingdom).
There is a somewhat inaccurate story about the discovery published in Ahram Online. The newspaper article states that Sinhue fled Egypt during the reign of Amenemhat III, when in actuality he (for reasons unknown) left Egypt at the death of Amenemhat I. The story mentions that the fortresses were designed with water breaks to protect them from floods during the Niles's annual inundation.
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