Under Empress Catherine the Great (1729–1796) in 1783 the Crimea became a part of the Russian Empire. Count Mikhail Vorontsov planted the first wine gardens in 1820 and established a large winery near Yalta. The viticulture research institute Magarach was founded then in 1828. In 1822, with the approval of Tsar Alexander I, Swiss winegrowers from the canton Vaud established a colony at Shabo (French: "Chabag"). They later founded daughter colonies on the Dnieper and in Crimea. Wine from Chabag was displayed at the 1893 World's Columbian Exposition in Chicago and received a medal of recognition.