Early Muslim conquests and the subsequent Samanid Empire converted most of the people, including the local ruling classes, into adherents of Islam. This period saw leading figures of the Islamic Golden Age, including Muhammad al-Bukhari, Al-Tirmidhi, al Khwarizmi, al-Biruni, Avicenna and Omar Khayyam. The local Khwarazmian dynasty and Central Asia as a whole were decimated by the Mongol invasion in the 13th century, after which the region became dominated by Turkic peoples. The city of Shahrisabz was the birthplace of the Turco-Mongol conqueror Timur (Tamerlane), who in the 14th century established the Timurid Empire and was proclaimed the Supreme Emir of Turan with his capital in Samarkand, which became a centre of science under the rule of Ulugh Beg, giving birth to the Timurid Renaissance. The territories of the Timurid dynasty were conquered by Uzbek Shaybanids in the 16th century, moving the centre of power to Bukhara. The region was split into three states: the Khanate of Khiva, Khanate of Kokand and Emirate of Bukhara. Conquests by the Mughal emperor Babur towards the east led to the foundation of India's newest invasions as the Mughal Empire. All of Central Asia was gradually incorporated into the Russian Empire during the 19th century, with Tashkent becoming the political center of Russian Turkestan. In 1924, national delimitation created the Uzbek Soviet Socialist Republic as an independent republic within the Soviet Union. Following the dissolution of the Soviet Union, it declared independence as the Republic of Uzbekistan on 31 August 1991. Prehistory In 1938 A. Okladnikov discovered the 70,000-year-old skull of an 8- to 11-year-old Neanderthal child in Teshik-Tash in Uzbekistan. After this Central Asia was occupied by the Scythians, Iranian nomads who arrived from the northern grasslands of what is now Kazakhstan sometime in the first millennium BC. These nomads, who spoke Iranian dialects, settled in Central Asia and began to build an extensive irrigation system along the rivers of the region. Cities such as Bukhara (Bukhara) and Samarqand (Samarkand) began to appear as centers of government and culture. In the first millennium BC, Iranian nomads established irrigation systems along the rivers of Central Asia and built towns at Bukhara and Samarqand. These places became extremely wealthy points of transit on what became known as the Silk Road between China and Europe. Early history In the seventh century AD, the Soghdian Iranians, who profited most visibly from this trade, saw their province of