Playing card trivia:
Did you know that the 4 suits of cards come from the 4 forms of power ?
* Diamonds -> Merchant (capitalist) class
* Hearts -> The clergy, controlling the hearts of the people
* Spades -> Spade = sword, the power of overt politics, military & the king
* Clubs -> The power of the people, with primitive weapons (clubs) still able to project influence
The Ace was added in France to commemorate the revolutionary who overthrew the king...
https://www.theguardian.com/books/booksblog/2013/dec/04/books-advent-calendar-4-four-card-suits