First DayPresident Obama's first day in office; January 21, 2009.
Nobel Peace PrizeObama receives his Nobel Peace Prize at Raadhuset Main Hall at Oslo City Hall in Oslo, Norway, Dec. 10, 2009.
BP Oil Spill BriefingObama during a briefing following the BP oil spill Coast Guard Venice Center, in Venice, La., Sunday, May 2, 2010.
The ViewObama visits The View July 28, 2010.
Make A WishObama fist bumps Make A Wish recipient Juan Blanco in the Oval Office, Oct. 6, 2010.
Obama Signs LawObama signs the Tax Relief, Unemployment Insurance Reauthorization, and Job Creation Act of 2010 in the Eisenhower Executive Office Building of the White House, Dec. 17, 2010.
Osama Bin Laden MissionObama delivers a statement about the Osama Bin Laden mission May 1, 2011.
Baby WhispererObama soothes a baby that wouldn't stop crying when the First Lady held her at the Congressional Picnic on the South Lawn of the White House, June 15, 2011.
Toast for a HeroObama toasts Dakota Meyer on the patio outside of the Oval Office, Sept. 14, 2011, a day prior to presenting him with the the Medal of Honor.
Martin Luther King, Jr. National MemorialObama visits the Martin Luther King, Jr. National Memorial in Washington, D.C., Oct. 14, 2011.
Jimmy FallonObama laughs at briefing of "Slow Jam the News" segment backstage before appearing on “Late Night with Jimmy Fallon” April 24, 2012.
AfghanistanObama greets troops at Bagram Air Field, Afghanistan, May 1, 2012.
With President ClintonObama speaks with former President Bill Clinton backstage at the New Amsterdam Theater in New York, N.Y., June 4, 2012.
Aurora Conference CallObama on a conference call following Aurora, Colorado shootings, during the motorcade ride to Palm Beach International Airport in Palm Beach, Fla., July 20, 2012.
VotingObamam casts his ballot during early voting at the Martin Luther King Jr. Community Center in Chicago, Ill., Oct. 25, 2012.
Election NightObama talks with former Massachusetts Gov. Mitt Romney in the Presidential Suite at the Fairmont Chicago Millennium Park in Chicago, Ill., Nov. 6, 2012
Barack Obama was sworn into office for his second term as President of the United States on Jan. 21. Here's a look back at some memorable moments of Obama’s first term as president, starting with his very first day.