The labour movement in Sweden dates back to at least the 1850s, when Swedish workers initiated the organizing of previously spontaneous food riots into strikes, hence acting as an autonomous group.
An event that is usually considered to be central in the early days of the Swedish labour movement is the lecture "Hvad vil Social-Demokraterna?"
Parallel to, but closely associated with this movement is the Swedish Social Democratic Party (SAP), founded in 1889.
In 2008 for the first time the total number of active wage and salary members (i.e. excluding pensioner, students and self-employed) in TCO and SACO together surpassed that of LO.
[7] The declining number of LO members is also related to the decreasing share of blue-collar workers in the labour force.