But how came these classes into existence? If the great feudal ancient property in land can have its origin ascribed to political causes through forcible seizure of territories, this could not be done as regards the bourgeoisie and the proletariat. There are in this case clearly exposed the origin and progress of two great economic classes from plain and evident economic causes. And it was just as clear that in the fight between the landholding class and the bourgeoisie, no less than in that between the bourgeoisie and the proletariat, economic interests were the most important, and that political force served only as a mere means of furthering these. The bourgeoisie and the proletariat both arose as results of a change in economic conditions, or, strictly speaking, in methods of production. The transition, first from hand labor, controlled by the gilds, to manufacture and thence from manufacture to the greater industry, with steam and machine force, has developed these two classes. At a certain stage new forces of production were set in motion by the bourgeoisie, following upon the division of labor and the union of many different kinds of labor in one united manufacture, and the methods of exchange and requirements of exchange developed by their means, were incompatible with the existing historical surviving methods of production consecrated by the law, that is to say the gilds and the innumerable personal and other privileges (which for the unprivileged were only so many fetters) of the feudal social organization. The forces of production brought into being by the bourgeoisie rebelled against the methods of production originated by the gildmasters and the feudal landlords; the result is known; the feudal fetters were struck off, in England gradually, in France at one blow; in Germany the process is not yet quite complete. As manufacture came into conflict at a certain stage of progress with feudal methods of production, so has the greater industry now joined battle with the bourgeois organization of industry established in their place. Bound by this system, owing to the narrow limits of the capitalistic methods of production, there occurs on the one hand an ever increasing conversion of the mass of the people into proletarians, and on the other hand an ever increasing amount of products which cannot be disposed of. Over-production, and suffering on the part of the masses, the one the cause of the other, that is the absurd contradiction in which it runs its course, and which of necessity requires a control of the forces of production, through a change in the methods of production.