• The Communist Manifesto
Marx and Engels coauthored
A call to arms for the proletariat (class of wage-earners)
“Workers of the world, unite!” set down the principles on which communism was to evolve.
History was a series of class struggles between owners of capital (capitalists) and workers (proletariat).
Wealth became more concentrated in the hands of a few capitalists, he thought, the ranks of an increasingly dissatisfied proletariat would swell, leading to bloody revolution and classless society.