History of economic thought died, Engels completed the second volume of "Das Kapital" from his notes. Marx wrote his magnum opus "Das Kapital" (1867) at the British Museum's library in London. Karl Marx begins with the concept of commodities. Before capitalism, says Marx, production was based on slavery – in ancient Rome for example – then serfdom in the feudal societies of medieval Europe. The current mode of labor exchange has produced an erratic and unstable situation allowing the conditions for revolution. People buy and sell their labor as people buy and sell goods and services. People themselves have become disposable commodities. As Marx
Nikolai Danielson in radical political circles and took interest in one of the populist "narodnik" movement. In 1872, Danielson published the first Russian translation of volume 1 of "Das Kapital" by Karl Marx. The translation had been initiated by Mikhail Bakunin before Bakunin's break with Marx and had been continued by German Lopatin. While completing the translation, Danielson initiated a correspondence with Karl Marx and Friedrich Engels, which continued for the rest of their lives. Danielson also translated volumes 2 and 3 of "Das Kapital", which were published in 1885 and 1896. In 1880 Danielson published the article "Studies of Our Post-Reform