The founding date of the British Library (The National Library of England) dates back to the 1750s. The library, formerly housed within the British Museum, was legally separated from the institution and established as an independent entity known as the British Library. The British Library, officially opened by the Queen in 1998, contains more than 150 million documents. The British Library is considered the second largest library in terms of books and other contents in the world. The British Library is near St. Pancras-Kings Cross station, where all trains meet in central London. Currently, the British Library does not have any catalogs specifically dedicated to Turkish manuscripts, nor do they contain a comprehensive collection of all Turkish manuscripts within the library. The catalogs and brochures contained within Turkish manuscripts, which were compiled in the years 1888 and 1958, are considered insufficient for contemporary researchers. The British Library has a wide variety of Turkish manuscripts. It is possible to discover a significant quantity of manuscripts composed in various Turkic languages, including Gokturk, Old Uyghur Turkic, Karahanlı-Harezm-Kipchak in the East, and Azerbaijan Turkic, Old Anatolian Turkish, Ottoman Turkish, and Turkish Turkish in the West, all of which belong to the Oghuz branch of the Turkic language family. In addition, the British Library has treatises in almost all Turkish dialects (Bashkurt, Uzbek, Tatar, Kazakh, Kirghiz, Chuvash, etc.).