Overview: The first seeds of socialism are planted on the banks of Indiana's Wabash River, a utopian community designed by a social reformer who later inspired Karl Marx.
Overview: As Vladimir Lenin's brutal communist revolution transforms Russia, socialism stalls in the United States.
Overview: Mao takes over China and socialism peaks worldwide with 60 percent of mankind living under some form of it.
Overview: Poorer countries embrace socialism, while Margaret Thatcher tamps down British socialists.
Overview: The USSR implodes, China reforms and other countries embrace capitalism.
Overview: Socialism makes a surprising comeback across the world.