In what ways was Marx's right and wrong about capitalist society and socialist society revolution?

In the Communist Manifesto, Marx lays out a vision of the future which he believes to be fore-ordained by the economic realities that govern history. The real history of the late nineteenth and early twentieth centuries, however, played out differently from Marx’s predictions. Examine Marx’s historical prognosis and analyze the ways in which he was right and wrong about the coming shape of the world and the fate of both capitalist society and the socialist revolution.