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Also known as yd, yards

thumb|The informal public imperial units|imperial measurement standards erected at the [[Royal Observatory, Greenwich, in the 19th century: 1 British yard, 2 feet, 1 foot, 6 inches, and 3 inches. The inexact monument was designed to permit rods of the correct measure to fit snugly into its pins at an ambient temperature of 62 °F (16.66 °C).]] thumb|Bronze Yard No.11, the official standard of length for the United States between 1855 and 1892, when the Treasury Department formally adopted a metric standard. Bronze Yard No.11 was forged to be an exact copy of the British Imperial Stan

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A yard is a unit of measurement in the imperial system that was historically standardized through official physical artifacts, such as the British Imperial Standard and Bronze Yard No. 11 used by the United States between 1855 and 1892. These standardized yard measures were important because they ensured consistent and accurate measurements across a country or region, allowing for reliable commerce, construction, and other activities that depend on precise length.

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