The ancient Egyptians developed the practice of mummification to preserve the human body after death, which they believed was essential for an afterlife. The complicated mummification process took around 70 days and involved removing internal organs, dehydrating the body with natron, and wrapping it in linen bandages. They also buried the dead with objects from their lives. Wealthy Egyptians could afford burial in tombs, while poor Egyptians were buried in the sand. Mummies and pyramids were ways to protect the body into the afterlife.