Post by steveinthecity on Jun 26, 2017 19:54:16 GMT -8
In Great Britain in 1799 the "reversible court" playing card design was patented by Edmund Ludlow and Ann Wilcox. Reversible card faces meant that players no longer had to turn upside down cards right side up. Before this, opponents could sometimes get an idea of what was in another player's hand by watching them reverse their cards.
Taking this one step further, the four numbers in "1799" add individually to the sum of 26, and there are exactly 26 black and 26 red cards in a standard deck.