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
Das Kapital will read it, and even fewer will understand it". Nonetheless, Marx acknowledged that Russia was the country where "Capital" "was read and valued more than anywhere". The Russian edition was the fastest selling. 3,000 copies were sold in one year while the German edition took five years to sell 1,000, thus the Russian translation sold fifteen times faster than the German original. In the wake of the global economic collapse of 2008–2009, "Das Kapital" was reportedly in high demand in Germany. In 2012, Red Quill Books released "Capital: In Manga!", a comic book version of Volume I which is an