Former President Barack Obama was spotted at the inauguration of Donald Trump. See pictures of the former president here.

In 1265, Britain's House of Commons, which became a model for parliamentary bodies, met for the first time. In 1778, James Cook became the first European to step foot on the Hawaiian Islands. He called them the Sandwich Islands.

Donald Trump, who overcame impeachments, criminal indictments and a pair of assassination attempts to win another term in the White House, will be sworn in Monday as the 47th U.S. president taking charge as Republicans claim unified control of Washington and set out to reshape the country’s institutions.