I got a couple of responses to my Hawaiian Food page, one of them pointing out that they think Laulaus did not exist until after the Portuguese came to Hawaii. I don't know if his point was that makes Laulaus not really Hawaiian or if that's just to point out some history but it got me thinking. What is the origin of certain foods?
For example I remember learning that people thought tomatoes were poisonous until George Carver Washington convinced people otherwise. If that's true then Italian food using tomatoes didn't exist until this century. Well according to this page tomatoes were brought back from the Americas in the 14/15th centuries and then usage spread to Italy and Spain.
While researching that I found this one about Pizza which states among other things that mozzarella cheese didn't exist until the mid 1800s.