Skedsmo was established as a municipality on 1 January 1838 (see
formannskapsdistrikt).
Lørenskog and Lillestrøm was separated from Skedsmo as municipalities of their own on 1 January 1908. Lillestrøm was, however, merged back into the municipality of Skedsmo on 1 January 1962. On 1 January 2020, Skedsmo was merged with
Fet and
Sørum municipalities to, once again, form
Lillestrøm municipality. In this area, the tribe of Raumas fought against King
Olav Haraldsson, patron saint of Norway, in 1028. The area has become an important part of Norway's industrial history.
Strømmens Værksted built the country's first trains, at Kjeller airplanes were constructed up to
World War II, the
sawmills at Lillestrøm processed
lumber from the great
forests, and a number of other enterprises have been important. ==Government==