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.
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Paris is hosting this year's World Wrestling Championships. Along with the grappling on the mats, the sport has recently had to fight for its existence in the Olympic Games. Mike Rowbottom takes a look back at that battle.