Barack Obama was the first African American President of the United States

The first major accomplishment of President Barack Obama was that he was the first African American to be elected president of the Harvard Law Review in 1990, while at Harvard. He served in the Illinois Senate from the 13th district from January 8, 1997, to November 4, 2004. Then, Obama served as a United States Senator representing Illinois from January 3, 2005, until November 16, 2008. In February 2007, Barack Obama declared his campaign for President of the United States.

He defeated Republican opponent John McCain in the 2008 US presidential election, earning 52.9 percent of the popular vote and 365 electoral votes to McAin's 173 votes. Obama was re-elected in 2012 with 332 electoral votes and 51.1 percent of the popular vote. From January 20, 2009, to January 20, 2017, Barack Obama was the 44th President of the United States. Obama was also the first African-American to be elected president of the United States. For the historically marginalized African American community in the United States, his win was hugely significant.