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Russian Archin

The archin (also spelled arshin) is a traditional Russian unit of length that was widely used before the adoption of the metric system. It is approximately equal to 28 inches or 0.7112 meters.

The archin was commonly used in measuring cloth, land, and building dimensions in Russia and neighboring regions. It roughly corresponds to the length of a forearm from the elbow to the tip of the middle finger, similar to the cubit.

Though obsolete today, the archin remains an important part of Russian historical measurements and appears in older legal and trade documents.

Summary:

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  1 archin ≈ 28 inches (0.7112 meters)

  
  
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  Used historically in Russia for textiles and land measurement

  
  
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  Based on the length of the forearm

  
  
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  Mostly of historical and cultural interest today

  
  

Roman Actus

The actus was an ancient Roman unit of length used primarily in land measurement. It is approximately 120 Roman feet, which equals about 35.5 meters (around 116.5 feet).

The actus was often used to define dimensions of fields and plots of land. It was also part of Roman surveying practices, helping organize land division and property boundaries.

Key facts:

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  1 actus = 120 Roman feet ≈ 35.5 meters

  
  
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  Used in Roman land surveying and agriculture

  
  
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  Essential for measuring fields and agricultural plots

  
  
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  Reflects the Roman emphasis on precise land division

  
  

The actus highlights the sophistication of Roman engineering and property management in their time.