Q: Passage: The earliest known Egyptian pyramids are found at Saqqara, northwest of Memphis. The earliest among these is the Pyramid of Djoser (constructed 2630 BC -- 2611 BC) which was built during the third dynasty. This pyramid and its surrounding complex were designed by the architect Imhotep, and are generally considered to be the world's oldest monumental structures constructed of dressed masonry.

Question: Based on this passage, when was the first pyramids built in egypt?
Let's give stream of consciousness below

This is the relevant information: The earliest among these is the Pyramid of Djoser (constructed 2630 BC -- 2611 BC) which was built during the third dynasty. So the answer is 2630 BC -- 2611 BC.