One of the first crops domesticated by humans, barley also had the distinction of being used to make one of the first alcoholic drinks—beer. With its short growing season, barley is adaptable to a greater range of climates than any other cereal. It thus became a staple cereal of ancient Egypt, featured in ancient Greek rituals, was used as currency, and even had it grains used for measurement in England. Shoe sizes in the US and UK are based on a historic inch equivalent to how many barleycorns? Discuss