What pharaoh started the trend of building pyramids?

The trend of building pyramids in ancient Egypt is generally attributed to Pharaoh Djoser, who reigned during the Third Dynasty around 2670 BCE. He commissioned the Step Pyramid at Saqqara, which is considered the first large-scale stone structure and marked a significant architectural advancement. Djoser's pyramid laid the foundation for later, more refined pyramids, including those at Giza. This innovation reflected the evolving beliefs in the afterlife and the divine status of the pharaoh.