The President of the United States, Barack Obama, makes Fort Monroe in Hampton, Virginia, a National Monument.
In his final speech as President of the United States to the United Nations General Assembly, Barack Obama calls for a renewed commitment to collaborative efforts in facing many of the challenges confronting “an integrated world” community.
The public portion of Barack Obama's second inauguration takes place at nation's capital in Washington, D.C., a day after he was officially sworn into office in the White House for his second term as President of the United States.
U.S. president Barack Obama strongly condemns the "outrageous attack" that killed the U.S. ambassador to Libya and three other U.S. citizens in Benghazi, Libya, saying that the United States rejects denigration of religious beliefs but also rejects the "senseless violence that killed the US diplomat".
In response to persistent accusations by potential Republican primary candidate Donald Trump and others, President of the United States Barack Obama releases his long-form birth certificate, certifying his birth in the state of Hawaii.
Judge Royce C. Lamberth of the United States District Court for the District of Columbia rules against a decision by President Barack Obama allowing the expansion of embryonic stem cell research claiming it breaks US law.