Why does a deck of UNO cards seem to only appear when it’s raining outside? UNO should be the official game of rainy days. All this wet California weather got me thinking about UNO, so below are a few fun facts about the card game:
- There is a total of 108 cards in one UNO deck.
- The game was originally developed in 1971 by Merle Robbins in Reading, Ohio.
- In older versions, only the 6 is underlined to distinguish it from the 9.
- Playing a 0 is more likely to prevent the color from changing than playing any other card of a given color.