The history of socialism has its origins in the Age of Enlightenment and the 1789 French Revolution along with the changes that it brought, although it has precedents in earlier movements and ideas. The Communist Manifesto was written by Karl Marx and Friedrich Engels in 1847-48 just before the Revolutions of 1848 swept Europe, expressing what they termed scientific socialism. In the last third of the 19th century parties dedicated to Democratic socialism arose in Europe, drawing mainly from Marxism. The Australian Labor Party was the world's first elected socialist party when it formed government in the Colony of Queensland for a week in 1899.

Pierre-Joseph Proudhon was a French socialist, politician, philosopher, and economist who founded mutualist philosophy and is considered by many to be the "father of anarchism". He was the first person to declare himself an anarchist, using that term, and is widely regarded as one of anarchism's most influential theorists. Proudhon became a member of the French Parliament after the Revolution of 1848, whereafter he referred to himself as a federalist. Proudhon described the liberty he pursued as "the synthesis of community and property". Some consider his mutualism to be part of individualist anarchism while others regard it to be part of social anarchism.