Obama tearfully thanks his wife in farewell
International desk: US President Barack Obama said goodbye to the nation Tuesday night, declaring during his farewell address.
His voice at moments catching with emotion, Obama recounted a presidency that saw setbacks as well as successes.
"By almost every measure, America is a better, stronger place" than it was eight years ago, Mr Obama said.
The country's first black president, now 55, was first elected in 2008 on a message of hope and change.
His successor, President-elect Donald Trump, has vowed to undo some of Mr Obama's signature policy achievements.
Mr Trump will be sworn into office on 20 January.
Returning to Chicago, where he first declared victory in 2008, Mr Obama is delivering a parting message to Americans after a divisive and vicious election campaign which led to Mr Trump's victory over Democrat Hillary Clinton.
The speech will aim to speak to everyone in America, including Trump supporters, White House officials had earlier said.