The Third Intermediate Period (c. 1069-525 BCE) is the era following the New Kingdom of Egypt (c. 1570-c.1069 BCE) and preceding the Late Period (c.525-332 BCE). Egyptian history was divided into eras of 'kingdoms' and 'intermediate periods' by Egyptologists of the late 19th century CE to clarify the country's history, but were not used by the ancient Egyptians themselves.
https://www.worldhistory.org/Third_Intermediate_Period_of_Egypt/ #Amun #Ashurbanipal #CambysesII