page_title: Stone (unit)
section_title: Antiquity
hierarchical_section_title: Stone (unit) / Antiquity
caption_attribution_description: فارسی: سنگ وزنه دوره داریوش هخامنشی به وزن 9950 گرم . موزه ایران باستان. با کتیبه به سه زبان فارسی باستان و عیلامی و بابلی .
context_page_description: The stone or stone weight is an English and imperial unit of mass now equal to 6.35 kg.
  England and other Germanic-speaking countries of northern Europe formerly used various standardised "stones" for trade, with their values ranging from about 5 to 40 local pounds depending on the location and objects weighed. The United Kingdom's imperial system adopted the wool stone of 14 pounds in 1835. With the advent of metrication, Europe's various "stones" were superseded by or adapted to the kilogram from the mid-19th century on. The stone continues in customary use in Britain and Ireland for body weight, but was prohibited for commercial use in the United Kingdom by the Weights and Measures Act of 1985.
context_section_description: The name "stone" derives from the use of stones for weights, a practice that dates back into antiquity. The Biblical law against the carrying of "diverse weights, a large and a small" is more literally translated as "you shall not carry a stone and a stone (אבן ואבן), a large and a small". There was no standardised "stone" in the ancient Jewish world, but in Roman times stone weights were crafted to multiples of the Roman pound. Such weights varied in quality: the Yale Medical Library holds 10 and 50-pound examples of polished serpentine, while a 40-pound example at the Eschborn Museum is made of sandstone.
caption: Stone weight with Darius the Great tri-lingual inscription. 9950g
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