The Kutadgu Bilig is often considered to be part of the Mirror for Princes, a genre of literature which includes works like the Qābūs-nāmeh, written in 1082, and the Siyāset-nāmeh, written in 1090.
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The author of the Kutadgu Bilig was named Yūsuf, and was born in Balasagun, which at the time was the winter capital of the Karakhanid empire, and was located near present-day Toqmoq in Kyrgyzstan.
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Cairo - The copy was found in a Mamluk library in 1897 in Cairo; the Mamluk ruler of 1293-1341 is mentioned in the copy, which is written in the Arabic script.
When the surname legislation was introduced, making it mandatory for every Turkish citizen to have a family name, Hüseyin chose the surname Sayram from Kutadgu Bilig (The Holy Knowledge) an 11th Century Turkish Encyclopedia by Yusuf Has Hajib, meaning a "musicologist".