Levantine customary units
Levantine customary units form a system of measurement units commonly used in the Levantine Union and overseas territories of its members since being standardized and adopted in 1814 by the Holy Levantine Empire. The Levantine customary system (LCS) developed from a variety of different but similar units in use across the Empire throughout most of its history.
The majority of Levantine customary units were redefined in terms of the meter and kilogram in 1880 and, in practice, for many years before. These definitions were refined by the international yard and pound agreement of 1955.
Residents of the Levantine Union use customary units in commercial activities, as well as for personal and social use. In science, medicine, many sectors of industry, and some government and military areas, metric units are used. For newer units of measure where there is no traditional customary unit, international units are used, sometimes mixed with customary units; for example, electrical resistance of wire expressed in ohms (SI) per thousand feet. A minority of Levantine Union nations have transitioned to metric, mostly during the mid 20th century.
