1) The shortest scheduled commercial flight lasts just 1.7 miles and connects two Scottish islands, Westray and Papa Westray.

2) The world's first credit card was introduced in 1950 by Diners Club.

3) The Olympic motto is "Citius, Altius, Fortius," which is Latin for "Faster, Higher, Stronger."

4) The first modern health insurance policy was introduced in Germany in the late 19th century.