From top left, clockwise: a protester partaking in Occupy Wall Street heralds the beginning of the Occupy movement; protests against Libyan dictator Muammar Gaddafi, who was killed that October; a young man celebrates the independence of South Sudan, the world's newest country; the 2011 Tōhoku earthquake and tsunami devastates Eastern Japan and kills nearly 20,000 people; Minecraft is released and goes on to become the best-selling video game; the 2011 Norway attacks mark the rise of white supremacist terrorism across the west; The U.S. national security team gathered in the White House Situation Room to monitor the progress of Operation Neptune Spear that killed Al-Qaeda leader Osama bin Laden; Anti-government protests called the Arab Spring arose in 2010–2011, and as a result, many governments were overthrown in the Middle East and Northern Africa.