Metrication in Sweden

Sweden decided to adopt the metric system in 1876. After a ten-year transition period starting 1879, usage of legacy units were outlawed by the beginning of 1889.
History.
On André Oscar Wallenberg suggested to the Swedish parliament that the metric system should be implemented in Sweden. After the suggestion was approved in the Swedish Parliament , work started to draft a law for metrication.
After about one year of drafts, debates and amendments, the law was approved . The first part of the law stated that the meter was the basis for measurement of length and the kilogram the basis for measurement of weight. It also stated the prefixes and decimal relation to be used. During the debates, the length of the transition period, first planned until 1883, and the fact that Sweden already had changed to a decimal based measurement system in 1855 were discussed. The law also defined the "ny mil" as exactly meter, from the former meter Swedish mile.
The law stated that the introduction should take place progressively from 1879 to 1888, and that the metric system should be used exclusively from the beginning of 1889.