Alen (unit of length)

The "alen" is a historical unit of length that has been used in various cultures, particularly in Northern Europe. Its exact length has varied depending on the region and time period. In general, an alen is roughly equivalent to the length of a human arm, and it is often approximated to be about 1.5 meters (or about 59 inches) in many contexts. However, in different locales, it could be longer or shorter.