From Time:
He was not only an accidental President but a famously and endearingly accident-prone one as well. Fate evidently had elaborate designs on Gerald Rudolph Ford and fulfilled them on the world’s stage in a dazzling combination of high pomp and low slapstick.
He was the nation’s first appointed Vice President, chosen in October 1973 by President Richard Nixon under the terms of the recently ratified 25th Amendment to succeed the disgraced Spiro Agnew. Less than a year later, on Aug. 9, 1974, Nixon resigned rather than face a Senate trial on three articles of impeachment passed by the House of Representatives, and Ford took the oath to be the 38th President of the U.S.
More here.