Liu Xiaobo, China's most prominent human rights and democracy advocate, has died. Liu was diagnosed with late-stage liver cancer in May, while serving an 11-year sentence for his involvement in a pro-democracy manifesto<br /> called Charter 08 that called for an end to China’s one-party rule.<br /> In 2010, Liu was awarded the Nobel peace prize for his The activist played a significant role in the Tiananmen protests of June 1989. As soldiers moved to clear the square, Liu Xiaobo helped persuade some students to leave instead of facing down the army.
