The thought that someone in ancient times thought of it, first grind the grain to the state of flour, and then also bake and get a semblance of bread. This most likely happened by accident, but you need to be an experimenter. And you have not thought about it how it is, to make some kind of discovery. For example, if you look closely at the photo, you will notice several letters and even add a word, and this is also an accident.
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