How did the Egpytians know how to mummyify the dead?

The ancient Egyptians developed the practice of mummification through a combination of religious beliefs, observation, and experimentation over centuries. They believed in an afterlife where the preservation of the body was essential for the deceased's journey. Knowledge was passed down through generations of priests and embalmers, who refined techniques using natural substances such as natron to desiccate the body and resins for wrapping. Additionally, the careful study of anatomy and the importance placed on funerary rituals contributed to their sophisticated methods of preserving the dead.