While they ruled Egypt, they provided stability.
They did not devastate Egyptian civilisation. The Macedonians took over from then and kept it going with a light Greek ovrlay under Macedonian kings. The devastation came later with the Arabs and later invaders over a couple of thousand years
with the Egyptians and the Persians
Egyptians
The Persian Empire incorporated Libyans, Egyptians, Phoenicians, Greeks, Mesopotamians, Medes, Persians, Indians and several other lesser peoples.
Notably the Persians, Minoans and the Egyptians.
Many groups ruled over the Hebrews: Egyptians Persians Babylonians Romans Assyrian Greeks Muslims Catholics Russians Nazis
The Persian Empire incorporated Libyans, Egyptians, Phoenicians, Greeks, Mesopotamians, Medes, Persians, Indians and several other lesser peoples.
They interacted with the Egyptians, Greek, Gupta, Han Dynasty(China)
Egyptians, Persians, Greeks, Romans.
There are records that ancient Egyptians, Chinese and Persians antisepsis for wounds and injuries.
The neighbors of the Phoenecians wer the Assyrians, Babylonians, Persians, Egyptians, Greeks and Romans and Hebrews..
The Sumarian abacus appeared as early as 2700 BC, The ancient Egyptians and the Persians also used the abacus