I find it fascinating how many cultures have a unit of length that is roughly a yard and a unit of weight that is roughly a pound. Then I read (I think on the l

I find it fascinating how many cultures have a unit of length that is roughly a yard and a unit of weight that is roughly a pound. Then I read (I think on the linked site in fact) that these are military universals: one stride of a soldier in formation, and the weight of cereals needed to feed a soldier for one day.