Mastabas were Ancient Egyptian tombs made from mud bricks. Usually built after 3600 BC when the Ancient Egyptians started to use sun-dried bricks to create more advanced architecture and more permanent buildings. These sun-dried mud bricks enabled them to create arches and recessed walls, for decoration. These Mastabas enabled rich people to have more complex and lavish funerals.
These Mastabas became models for later building styles such as the Step Pyramid' at Saqqara built during the 'Age of the Pyramid Builder or 'Age of the Pyramids'. (This was later named the Old Kingdom by 17th century historians).