Add Yahoo as a preferred source to see more of our stories on Google. Cut pieces of a Philadelphia Roll on a plate - izikMD/Shutterstock Even though some form of sushi has been enjoyed since the 4th ...

Even though some form of sushi has been enjoyed since the 4th century, the combination of raw fish, rice, seaweed, and vegetables didn't fully take off in the U.S. until the late 1960s and early 1970s ...