League (unit)

A league is an old unit of length. It was the distance a person could walk in about one hour. The Romans adopted the league and it became a common unit of measurement throughout western Europe and Latin America.

In English-speaking countries the league was usually three statute miles (4.828032 kilometres) on land or three nautical miles (5.556 km) at sea. However, in writing the word league often means the Spanish, Portuguese or French league.

Ancient Rome
The league was used by Ancient Rome, which defined it as being  Roman miles (7500 Roman feet or 2.22 km). The origin is the "leuga gallica"  (also: leuca Gallica), the league of Gaul. The ancient league was short but the unit grew longer over time.

Argentina
In Argentina a league is a distance of 5 km.

Brazil
In Brazil the league was 6 km but it is not used anymore.

France
The French league had different values at different times: 10 000, 12 000, 13 200 and 14 400 French feet, about 3.25 km to about 4.68 km. It was used for a while together with the metric system but it is not used now. The French league was three nautical miles.

Mexico
In the Mexican countryside the league is still commonly used in the original sense of the distance a person can walk in an hour. So a league along a good road on level ground is longer than a league on a difficult path over rough ground.

Spain
The Spanish league was originally set as a fixed unit of distance of 5,000 varas (a Spanish yard), about 2.6 miles or 4.2 km. In 1568 Philip II of Spain officially abolished the league. However, in parts of Latin America, people still use it (with different meanings in different countries).

 References 

Category:Old units of measurement
Category:Units of length