For other uses, see
Digit .
Detail of the Ancient Egyptian cubit rod in the Museo Egizio of Turin , showing digit, palm, hand and fist lengths
Some hand-based measurements, including the digit (6)
The digit or finger is an ancient and obsolete non-SI unit of measurement of length . It was originally based on the breadth of a human finger.[ 1] It was a fundamental unit of length in the Ancient Egyptian , Mesopotamian , Hebrew , Ancient Greek and Roman systems of measurement.
In astronomy a digit is one twelfth of the diameter of the sun or the moon.[ 2]
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