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 Description  
 English System:  A system of measuring using units such as inch, foot, yard, ounce, and pound.

The United States is one of the few countries in the world that uses the English system for measurement.

The English system emerged from natural, nonstandard units. For example, the foot was literally the length of an adult's foot. And the yard was the distance between the tip of the nose and the tip of the fingers of an outstretched arm. Some people still estimate yards of cloth using this technique. The inch was the length of three barley corns. The fathom was the distance between finger tip to finger tip of two outstretched arms. The acre was the amount of land a horse could plow in a day.

The need for standard units forced the English System to establish standard measurements for the various units. The foot was defined by a prototype metal bar and the rest of the units for measuring length were defined in relation to the foot. For example, the inch was defined as 1/12 of a foot, while the yard was defined as 3 feet.