Before revision: It originated as a form of left-wing politics, however in the mid-20th century , right-libertarian proponents of anarcho-capitalism and minarchism co-opted the term to advocate laissez-faire capitalism.
After revision: It originated as a form of left-wing politics, however in 1960s US , right-libertarian proponents of anarcho-capitalism and minarchism co-opted the term to advocate laissez-faire capitalism.