what is probably this larger Qur'an have been found, written in gold lettering on huge pages. Islam also spread amongst the Uzbeks with the conversion of Uzbeg Khan. Converted to Islam by Ibn Abdul Hamid, a Bukharan sayyid and sheikh of the Yasavi order, Uzbeg Khan promoted Islam amongst the Golden Horde and fostered Muslim missionary work to expand across Central Asia. In the long run, Islam enabled the khan to eliminate interfactional struggles in the Horde and to stabilize state institutions. Notable scholars from the area today known as Uzbekistan include Imam Bukhari whose book, Sahih Bukhari is regarded by Sunni Muslims as the most authentic of all hadith compilations and the most authoritative book after the Qur'an. Other Muslim scholars from the region include Imam Tirmidhi and Abu Mansur Maturidi who was one of the pioneers of Islamic Jurisprudence scholars and his two works are considered to be authoritative on the subject. In Samarqand, the development of sciences in the Muslim world greatly prospered, waving the Timurid Renaissance. The work of Ali Qushji (d. 1474), who worked at Samarqand and then Istanbul, is seen as a late example of innovation in Islamic theoretical astronomy and it is believed he may have possibly had some influence on Nicolaus Copernicus due to similar arguments concerning the Earth's rotation. The astronomical tradition established by the Maragha school continued at the Ulugh Beg Observatory at Samarqand. Founded by Ulugh Beg in the early 15th century, the observatory made considerable progress in observational astronomy. Under the Russian Empire The immediate founder of Jadidism was Crimean Tatar educator and politician Ismail Gasprinsky, which in 1883 began to publish the newspaper "Translator - Terjiman" in the Crimean Tatar and Russian languages. In the same year he opened the first Jadid school in Bakhchisarai. Gasprinsky paid great attention to the education of women. On August 15, 1905, the Jadidists of Gasprinsky managed to create Ittifak al-Muslimin ( 'اتفاق المسلمين' : Union of Muslims), the first congress of which was held in Nizhny Novgorod on the steamer "Gustav Struve" and included 150 delegates from Crimea, Transcaucasia, Urals, Turkestan and Siberia. This party was presented in the Russian State Duma. The Samarkand mufti Mahmudhoja Behbudi took an active part in the work of the party. an example of an enlightened ruler was Tamerlane. Another representative of the Ittifak party Musa Bigeyev translated the Koran into Tatar in 1912