The  French  suit  system   of  hearts,clubs,    diamonds    and    spades    wasinvented  in  the  second  half  of  the 15thcentury.  Their  method  of  manufacturewas simpler than that  of the other  exist-ing   suit   systems   which   required   aprinted  outline  to  be  coloured  in.  Thishelped to cut the cost  of production  andassisted their increase in popularity. Let me explain what is meant by "On the long term". As an easier understandable example lets choose Roulette. In the long ...