Louis Dembitz Brandeis was born on November 13, 1856, in Louisville, Kentucky, the youngest of four children. His parents, Adolph Brandeis and Frederika Dembitz, both of whom were Ashkenazi Jews, immigrated to the United States from their childhood homes in Prague, Bohemia (then part of the Austrian Empire). They emigrated as part of their extended families for both economic and political reasons. The Revolutions of 1848 had produced a series of political upheavals and the families, though politically liberal and sympathetic to the rebels, were shocked by the anti-Semitic riots that erupted in Prague while the rebels controlled it. In addition, the Habsburg Empire had imposed Business taxes on Jews. Family elders sent Adolph Brandeis to America to observe and prepare for his family's possible emigration. He spent a few months in the Midwest and was impressed by the nation's institutions and by the tolerance among the people he met. He wrote home to his wife, "America's progress is the triumph of the rights of man."