 In 1812, Julius Klaproth's "Dissertation on language and script of the Uighurs" ("Abhandlung über die Sprache und Schrift der Uiguren") became the subject of a long-standing dispute.Klaproth asserted that Uighur was a Turkic language, while Schmidt was persuaded that Uighur should be classified as a "Tangut" language.In the following years, Schmidt concentrated on translations of the Bible into Kalmyk and Mongolian.