Imhotep was an Egyptian polymath who lived in the 27th century BCE and served as chief minister to the Egyptian king Djoser. He is remembered as a skilled physician, sage, and astrologer, as well as the architect of the step-pyramid at Saqqara, the first pyramid ever constructed. He was deified around the time of the Persian conquest in 525 BCE, and his cult reached its zenith in Greco-Roman times, when he was linked to Asclepius. He may have been the first to use what structure in architecture? Discuss
Source: The Free Dictionary