The Chronology of Egypt Egypt has several anchor points, or exact dates. These start with the early dynastic period at 15 Feb 3080 BC being the exact known Julian date for the death of Enezib (or Merbi), and the accession of Semerkhet to the throne. This is explained under fixed Egyptian dates. This also give exact years for Zer (or Djer) at 3189 BC and Zoser (or Djoser)( 2751 BC) of step pyramid fame built by the world’s first certifiable super genius Imhotep.
Other fixed dates are discussed in open literature and fix the Middle Kingdom, and New Kingdom (actually twice).
MESOPOTAMIA
There are separate chronologies for Babylonia, for Assyria, the Hittites, and there are synchronisms between all of these that help fix them all into a coherent package.