Barack Obama became president of the United States on January 20, 2009, when he was inaugurated as the 44th president.

Quick Scoop: Key Facts

  • Inauguration date: January 20, 2009.
  • Presidency period: He served from January 20, 2009, to January 20, 2017 (two four-year terms).
  • Historic milestone: He was the first African American to become president of the United States.

In simple terms: Obama officially “became president” at noon on January 20, 2009, when his first term began and he took the oath of office in Washington, D.C.

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