The ancient Egyptians developed one of the earliest and most influential civilizations due to the reliable flooding of the Nile River. The Nile provided fertile soil and transportation, allowing the Egyptians to develop a stable agricultural society. Religion and the pharaoh played a central role in Egyptian culture and helped organize society. The Egyptians also made advances in architecture, art, science, and writing with their development of hieroglyphics. They had a strong belief in the afterlife which was evident through their practices of mummification and construction of pyramids and tombs.