Heh, just had to put my two cents in on this one being a kenjutsu black belt. For those saying Samurai didn't duel wield two katana; I point you in the direction of Niten Ichi Ryu it is a style of sword fencing that was founded by The great Miyamoto Musashi. He according to which history you prescribe to had thousands of students, which are a whole lot of dual wielding samurai running around. In his style the second sword is also used as a throwing weapon. The style still exist and is practiced to this day. I got to go a seminar on it once it a pretty amazing sword style. Just some fun facts for yall to play with ^^