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Weight/Mass | Convert from obolus [Ancient Rome] to rotl, rotel, rottle, ratel [Arab] |
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Common Weight Conversions Metric Weight Conversions Unit Definition (obolus [Ancient Rome]) The obolus [Ancient Rome] is a historic unit of weight or mass. The obol is a very small weight that originated as the weight of a tiny Greek coin. In Rome, the obolus was equal to 1/48 Roman ounce (uncia) or about 0.57 gram. Unit Definition (rotl, rotel, rottle, ratel [Arab]) The rotl, rotel, rottle, ratel is a traditional Arab unit of weight corresponding to the Roman libra, the French livre, and the English pound. There was considerable variation in the unit from time to time and from place to place, but usually the rotl was about 0.9-1.15 pound (450-530 grams). However, in some areas of the Near East, such as Syria and Palestine, larger rotls of 5.5 to 6 pounds (2.5-2.8 kilograms) were used. This unit has many spellings in European languages.
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