Tian'anmen square is the spiritual heart of the world's most populous country. It earned this distinction by serving as the stage for momentous historical events, like the demonstrations on May 4th 1919 that inspired young Chinese to flight imperialists and warlords, and build a strong independent country. Among those swept up in the ferment of May Fourth Movement was Mao Zedong who would help found the commuist Party of China two years later.