You're probably not too surprised by the fact that California Rolls weren't created in Japan, but did you know that rolls in general aren't especially popular in Japan. Known as makisushi (rolled sushi), most sushi restaurants in Japan only serve a handful of simple rolls, such as kappa maki (cucumber), tekka maki (tuna), or takuan maki(yellow pickle). For many, they're considered an inexpensive filler reserved for the end of a meal when you start to worry about the escalating bill.