The Aleppo Codex, believed to be the world's oldest surviving copy of the Hebrew Bible has been officially recognized as a treasured item by the United Nations Educational Scientific and Cultural Organization and listed in the Memory of the World Register.

The manuscript known as the Aleppo Codex or simply the "Crown" (Keter) is considered by many scholars to be the most exact and authoritative Hebrew Bible and served as a source of text, cantillation and vocalization of the Bible - both in the past and present.  It is on permanent display at the Israel Museum in Jerusalem in the Shrine of the Book.

The Codex joins the registry of 300 items and collections from all over the world. The registry includes three other items from Israel: the Israel Museum's Rothschild Miscellany, a collection of illustrated 15th-century manuscripts; the Pages of Testimony at the Yad Vashem Holocaust Museum, which documents the names and stories of Holocaust victims; and Isaac Newton's Theological and Alchemical Papers at the National Library of Israel.

The Aleppo Codex was written in northern Israel around 930 CE. It was then thought to have moved to Jerusalem and then to Cairo before it was moved to Aleppo. The manuscript was kept in the ancient synagogue and after the riots in 1947 when the synagogue was burnt down, it was believed to have been destroyed. Only ten years later did it re-emerge as it was smuggled into Israel from Syria in a covert operation where it became the property of Yad Ben Zvi.

Out of the 487 pages of the complete manuscript, there are only 295 pages that have survived as far as experts are aware.