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Barack Obama: A presidency in pictures

Barack Obama has reached the end of his consequential eight-year presidency. As the nation's first African-American commander in chief and his wife prepare to leave the White House behind, Yahoo News takes you through his two terms — the exultation over the raid that killed Osama bin Laden, the heartbreak of the massacre of children in Newtown, Conn., the tumultuous implementation of the Affordable Care Act, the controversial Iran nuclear deal, the outreach to Cuba, and many other signal moments and policies.

There are also many quiet, behind-the-scenes snapshots, family time with first lady Michelle Obama and daughters Sasha and Malia, and the unforgettable photo of the little boy who asked to touch the president's hair. Through triumph and tragedy, these are some of the moments that exemplified the Obama era. (Olivier Knox/Yahoo News)

See more of our inauguration coverage here.

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