Interesting that tortillas are mentioned in the Wikipedia entry: It reminds me of a conversation theme that crops up every few years —the tortilla or wrap food pattern (food meme? food metaphor?) which seems to appear in practically every culture. For example: tacos, lavosh, eggrolls/spring rolls, injera, etc. Do these comprise a subset of the Great Sandwich Family, or do sandwiches comprise a family under the Breaded-Starchy Food Wrap Order?

Ahem, I digress. (As it is so much fun to do so. Especially concerning semantics. And food. ;)