When Liechtenstein made its Olympic debut at Berlin in 1936 they discovered that the country's flag of two equal horizontal bands of blue on the top and red was identical to that of Haiti. It led to a crown being added to the top left hand corner of Liechtenstein's flag the following year to differentiate it. But it was not until 1976 that it got hoisted at an Olympic medal ceremony when Hanni Wenzel won a bronze in the giant slalom at the Winter Games in Innsbruck.
There is a long way to go yet but the possibility of Donald Trump opening a 2024 Summer Olympics in Los Angeles remains very much alive. With his inauguration taking place this week, Philip Barker looks at the role US Presidents have played in the history of the Games.