Convert barleycorn to shackle (Britain 1949)
Selected category: length.
Definition and details for barleycorn:
Barleycorn is an old English unit of distance equal to 1/3 inch or about 8.47 millimeters. In farming societies was very common to use seeds as units of length. Barley was a basic crop in England. So barleycorn was a useful unit.
Definition and details for shackle (Britain 1949):
In 1949 the Royal Navy redefined shackle as 90 feet or 27.432 meters.