Martial Arts Martial Arts Questions

Besides training questions, what other questions do you have? It could be about a school's credentials or about a style's history. What the type of martial arts it is anything of that sort.

 

Ok back to discussing training! Well one thing I remember reading was that in Karate there originally was only 3 belts. a white, brown and black. One thing I do want to know is why would they make the training belts go from three colors to what 10 i think?