Why did egypt decline in the 17th century bce?

The history of Egypt has been long and wealthy, due to the flow of the Nile River with its fertile ... Ancient Egyptian civilization coalesced around 3150 BC with the political unification of Upper and Lower Egypt Coptic managed to last as a spoken language until the 17th century and remains a liturgical language today).

Explanation:

i personally think they should have, because they would have been a lot more successful.