Who is Djoser and what was he famous for? Please Help :)

Djoser was the  second king of the 3rd dynasty of ancient Egypt  who undertook the construction of the earliest important stone building in Egypt. His reign, which probably lasted 19 years, was marked by great technological innovation in the use of stone architecture.

Explanation:

Djoser is best known for his Step Pyramid, the first pyramid built in Egypt, although he initiated many other building projects; so many, in fact, that scholars have suggested a reign of almost thirty years to account for the number of tombs, temples, and monuments he commissioned

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