Theocracy, the Pharaoh was seen as a god, and had complete control over the country.
Half of the US would be part of Mexico, Texas was the first Mexican territory to become part of the US so the rest weren't hard to get since Texas was so big. I personally wish Texas would've stayed because if it would've, Mexico, my country, would be as powerful as the US.
BUT NAHHHHHHHHHHHH
I believe they called the slaves negros if I'm correct. I hope this helped