0_Apprentice
My kid used to take Karate, but I never learned much about it.
1_Wizard
Ok, let me tell you about it's origin, Karate was brought to Japan in the early 20th century 
0_Apprentice
I know there are different colored belts depending on skill, but I only remember his last one was brown.
1_Wizard
Ryukyuans from Okinawa that went to look  for work in Japan took it there