In ancient times the land that is now called Egypt was called by the people, then inhabiting that part of Africa, "Kam," a word that means "black" or "dark-colored" and referred to the dark color of the muddy soil in their land. To the Hebrews this name was known as "Khám" or "Ham" and in the Bible the Egyptians are referred to as "Sons of Ham" or "Children of Ham."
these people had a God called "Ptah" to whom they raised a temple--the temple was called "He-Ka-ptah" or House of "Ka"--of "Ptah." This name, that was in the beginning confined to "Memphis," gradually spread to other parts of the Nile Valley, and by degrees the whole country became known as "HeKapath," to other people with whom these people had contact.