Title factually wrong and edited, nowhere to be found in the linked article, which clearly states: Contrary to often-repeated claims, the Library of Ashurbanipa

Title factually wrong and edited, nowhere to be found in the linked article, which clearly states: Contrary to often-repeated claims, the Library of Ashurbanipal was not the first library in the world. Libraries existed in Sumer, attached to scribal houses, temples, and palaces by the Early Dynastic Period (2900-2334 BCE). Akkadians and Babylonians also had libraries and so did earlier Assyrian kings. Scribes in ancient Mesopotamia also kept private libraries aside from those they would have referenced at the palace, school, or temple. The Library of Ashurbanipal is just the oldest one systematically organized to preserve a comprehensive collection of knowledge (not limited to one subject or type of work) and, owing to the importance of the tablets found there, the most significant. With being predated by other know collections by ~2000 years, hardly "the oldest known", not by a long stretch.