I reallize this is a bit vague time line wise, but as it does grow in the regions, is easy to mill, and doesn't end up with rocks and dirty in it. (because you wash it before use)

I really want to know why it never cough on, or if it did, cant really find more then a few cookbooks, and peasants are almost never written about.

Edit: I meant to say Rice, sorry for the spelling mistake.