A look at key events during the first 100 days of Barack Obama's presidency:
Jan. 22: Obama orders the closure of Guantanamo Bay prison within a year and declares that the United States will not engage in torture.
Jan 23: Obama lifts ban on federal funding for international organizations that perform or provide information on abortions.
Jan. 27: Obama gives first formal television interview as president to Arab television station, telling Muslims, "Americans are not your enemy."
Jan. 29: Obama signs first bill into law, the Lilly Ledbetter Fair Pay Act, making it easier for workers to sue for pay discrimination.
Feb. 3: Former Senate Majority Leader Tom Daschle, D-S.D., withdraws as Obama's nominee for secretary of health and human services.
Image: In this Jan 20, 2009, file photo, reviewed by the U.S. Military, US Navy Chief Petty Officer Bill Mesta replaces an official picture of outgoing President George W Bush with that of newly- sworn-in President Barack Obama in the lobby of the headquarters of the US Naval Station in Guantanamo Bay, Cuba.
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