I have a question for a writing project of mine. Somewhere in my diminishing memory, I seem to recall that some Mexican Indians (I believe Mayans but could be Zapotecs or others) wrote recipes on the old pyramids. Might have been the first record of corn, tomato, etc. Also actual recipes for dishes not disimilar to some of today's Mexican cuisine. Does anybody know about this--or where I can look it up? I've tried various keywords on Google, but don't seem to be getting anywhere.