In fact, Uno exists because one family liked playing Crazy Eights but got tired arguing about the rules, so they started writing the rules on the cards and even

In fact, Uno exists because one family liked playing Crazy Eights but got tired arguing about the rules, so they started writing the rules on the cards and eventually made new cards: https://www.museumofplay.org/toys/uno/ https://www.museumofplay.org/toys/uno/