Friedrich Engels was born in 1820, in the German city of Barmen. He died in London in 1895 while editing the fourth volume of Capital. Karl Marx was an influential 19th-century philosopher, economist, journalist, and revolutionary. His historical and sociological ideas held sway over generations of scholars, and his incisive descriptions of the workings and effects of capitalism inspired both revolution and reform. Hobsbawm is Emeritus Professor of History at Birbeck College, University of London. He was educated in Vienna, Berlin, London, and Cambridge. He divides his time between New York and London.