The first known depiction of a heart as a symbol of romantic love dates to the 1250s. It occurs in a French manuscript, where a kneeling lover offers his heart to a damsel. The heart resembles a pine-cone (the point facing upward), in accord with medieval
The origins of the 15, 30, and 40 scores in tennis are believed to be medieval French. It is possible that a clock face was used on court, with a quarter move of the hand to indicate a score of 15, 30, and 45. When the hand moved to 60, the game was over.
