News Main Animals Archaeology Dinosaurs Earth History Human Animal Space Tech   AP Photo |   Happy on Inauguration Day A group of people celebrate the official start of Barack Obama's term as president on Inauguration Day in Washington, D.C. on Jan. 20, 2009. A happiness meter found that the overall happiest days of the last few years were election day (Nov. 4) and President Obama's inauguration (Jan. 20). | Discovery News Video   « back to article

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