The Leap Year Cocktail is one of the few with a very clear and concise history. It was made by the bartender legend Harry Craddock, head bartender at the American Bar in London’s Savoy Hotel. More specifically it was created for the hotels Leap Year celebration on February 29, 1928.

Two years earlier Harry Craddock had taken over as head bartender after another legend, Ada Coleman, was pushed out of the bar when The Savoy wanted to install an American as head of their American Bar. In reality Craddock was just American sounding. He was a Brit that had been working in the US, where he picked up an American accent. It was however good enough for Savoy.

The cocktail is presented in Craddock’s Savoy Cocktail Book with a note “It is said to have been responsible for more proposals than any other cocktail that has ever been mixed.” Maybe because of the Irish tradition that on this rarest of days women could propose to men. According to the tradition, if the man refused the proposal, he had to buy the woman a silk dress, or from the mid 20th century, a fur coat. In the upper classes of other European countries, taking over the Irish custom, any man refusing a woman’s Leap Day proposal had to buy her 12 pair of gloves. Possibly so that she could hide the fact that she was not carrying a ring.

The glass was designed in 1999 by the Italian designer Ettore Sottsass, inspired by Greek mythology.