Try this for fun next time you're in New York City: Walk into any sushi bar, eat your fill and then ask for a fortune cookie.
"Would that be a Chinese fortune cookie?" the waiter will likely respond a little loftily. "Sorry, but this is a Japanese restaurant."
"Exactly!" you might vouchsafe -- then launch into telling him how the so-called "Chinese" fortune cookie, that ubiquitous American snack that accompanies every order of General Tso's Chicken or Egg Foo Young, most probably came from . . . Japan, where near-identical tidbits called tsujiura sembei (crossroads-fortune crackers) have been enjoyed for generations.