Ahead of President-elect Donald Trump’s inauguration less than a week away, President Joe Biden is set to give his farewell address on Wednesday evening. The speech is expected to focus on his administration's achievements.

For more than 100 years, the US did not inaugurate its president until March - a four month wait for the official handing over of power. That changed in 1933 during the Great Depression economic crisis, when Inauguration Day moved from 4 March 4 to 20 January - with the ratification of the 20th amendment to the US Constitution.