Flatbreads are of course very, very common all over the world. Anywhere that people had access to grain they would have been standard, though yeasted ones mostl

Flatbreads are of course very, very common all over the world. Anywhere that people had access to grain they would have been standard, though yeasted ones mostly require wheat (or rye). Just from baking myself I would say that some of the appeal is not having to wait for multiple risings, punching down, and kneading - just mix flour, water, yeast, and throw it in a hot oven to have fresh bread in a few minutes.