 In 1814, Portugal adopted the metric system, but with the names of the units substituted by Portuguese traditional ones.In this system, the basic units were the "mão-travessa" (hand) = 1 decimetre (10 "mão-travessas" = 1 "vara" (yard) = 1 metre), the "canada" = 1 litre and the "libra" (pound) = 1 kilogram.In the Netherlands, 500 g is informally referred to as a "pond" (pound) and 100 g as an "ons" (ounce), and in Germany and France, 500 g is informally referred to respectively as "ein Pfund" and "une livre" ("one pound").