April 4, 1912: The Titanic leaves Southampton, England, on her ill-fated first voyage. Southampton City Council /AFP/Getty Images hide caption

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April 13: In Karachi, activists from the Shabab-e-Milli group set fire to U.S. flags during a protest against the reopening of the NATO supply route to Afghanistan. Asif Hassan /AFP/Getty Images hide caption

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Blind activist Chen Guangcheng with his wife and son outside their home in northeast China's Shandong province in 2005. AFP/Getty Images hide caption

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Pakistani policemen escort a minivan carrying family members of slain al-Qaeda chief Osama bin Laden, in Islamabad, earlier today. Aamir Qureshi /AFP/Getty Images hide caption

itoggle caption Aamir Qureshi /AFP/Getty Images