Generations of Noah are now seen as belonging to several distinct families independent of the Afro-Asiatic group. Some now discarded Hamitic theories have become viewed as racist; in particular a theory proposed in the 19th century by Speke, that the Tutsi were supposedly of some Hamitic ancestry and thus "inherently superior". The 17th-century Jesuit, Athanasius Kircher, thought that the Chinese had also descended from Ham, via Egyptians. There exist various traditions in post-biblical and talmudic sources claiming that Noah had children other than Shem, Ham, and Japheth who were born before the Deluge. According to the Quran ("Hud" 42–43), Noah had another unnamed
Levi ben Japheth of which, covering the first ten chapters of Joshua, still exists (Brit. Mus. Or. No. 308). Steinschneider believes it possible that Levi was also the author of the short commentary on Psalms found in the British Museum (No. 336). According to Ali ben Sulaiman, Levi made a compendium of the lexicon "Agron" of David ben Abraham; however, this is contested by Abu al-Faraj, who asserts that the compendium was prepared by David himself. Levi ben Japheth Levi ben Japheth (Heb. Levi ben Yafet ha-Levi; Arab. Abu Sa'id Levi ibn Yafat was a Karaite Jewish scholar who flourished, probably at Jerusalem,