The time period for Egyptian mummification is from the Predynastic period (4650-3050 BC) until after the New Kingdom (1069 BC-395 AD). The Egyptians believed in polytheism, or the religion that worshiped more than one god. Because they believed in more than one god, they believed in Osiris, the earthly god of the dead, and in Re, the sun god. These two gods were crucial to the Egyptians, because they relied on them to lead people to the afterlife. In order to reach the afterlife it was necessary for the deceased to be properly buried. The Tablet of Sinuhe, a Twelfth Dynasty text, described the preparation of a funeral for someone of the elite in Egypt, which included: building the tomb in an elite location, with both a public chapel and a burial chamber private. The Egyptians did this to preserve the name of the deceased and their items which were given to the deceased to help guide them into the afterlife. The family of the deceased then had to choose which of the three embalming processes was right for them. There were three types of mummification processes: there was the most expensive and elaborate process; the second way contained some steps of the first way to embalm a person, but it was very limited; and the last way would be the cheapest and least elaborate way to embalm someone. The embalmer was an astute, respected man and enjoyed the same privileges as priests. However, this belief in life after death influenced the Egyptian population and its art, architecture, technology and legal practices, according to which no one could do any harm to a corpse. Historians find all this information from two writers, who wrote several texts on mummification. The two... half of the paper... have increased their scientific knowledge and technological capabilities. Mummification refers to Egypt, because before the Old Kingdom, Egyptians used mummification, but instead of using chemicals like Natron, they preserved their dead by drying. Previously, the Egyptians buried their dead in the arid desert with the deceased's belongings. However, wealthier Egyptians began to bury their dead in tombs and used artificial mummification, which consisted of removing internal organs, wrapping the body in linen and burying it in coffins. But by the New Kingdom, the Egyptians perfected the process of mummification and organized elaborate funerals for the dead. Egyptian mummification is not used frequently by Egyptians today, but the discoveries and texts were important in discovering how Egyptians progressed in science and technology.