How can you prove that a civilization arose in Egypt?

For any civilization, there are a number of criteria that indicate to us that this is definitely a civilization, and not some incomprehensible community. First of all, such a sign is the presence of writing. In Egypt, writing was. At first it was pictographic, that is, in the form of drawings, then it became hieroglyphic. The presence of the state is also important. It was, took shape after the unification of Upper and Lower Egypt. It had its own bureaucratic apparatus and a supreme ruler in the form of a pharaoh, who was both a state administrator and, in fact, a high priest.