The Communist Manifesto, written in 1847, closes with the words: “Workingmen of all countries, unite!” But this battle cry came too early to become a living actuality at once. The historical order of the day just then was the middle-class revolution of 1848. And in this revolution the part that fell to the authors of the Manifesto themselves was not that of leaders of an international proletariat, but of fighters on the extreme left of the national Democracy.
The revolution of 1848 did not solve a single one of the national problems; it merely revealed them. The counter-revolution, along with the great industrial development that then took place, broke off the thread of the revolutionary movement. Another century of peace went by until recently the antagonisms that had not been removed by the revolution demanded the intervention of the sword. This time it was not the sword of the revolution, fallen from the hands of the middle class, but the militaristic sword of war drawn from a dynastic scabbard. The wars of 1859, 1864, 1866 and 1870 created a new Italy and a new Germany. The feudal caste fulfilled, in their own way, the heritage of the revolution of 1848. The political bankruptcy of the middle class, which expressed itself in this historic interchange of roles, became a direct stimulus to an independent proletarian movement based on the rapid development of capitalism.
In 1863 Lassalle founded the first political labour union in Germany.  In 1864 the First International was formed in London under the guidance of Karl Marx. The closing watchword of the Manifesto was taken up and used in the first circular issued by the International Association of Workingmen. It is most characteristic for the tendencies of the modern labour movement that its first organization had an international character. Nevertheless, this organization was an anticipation of the future needs of the movement rather than a real steering instrument in the class struggle. There was still a wide gulf between the ultimate goal of the International, the communist revolution, and its immediate activities, which took the form mainly of international cooperation in the chaotic strike movement of the workers in various countries. Even the founders of the International hoped that the revolutionary march of events would very soon overcome the contradiction between ideology and practice. While the General Council was giving money to aid groups of strikers in England and on the Continent, it was at the same time making classic attempts to harmonize the conduct of the workers in all countries in the field of world politics.
But these endeavours did not as yet have a sufficient material foundation. The activity of the First International coincided with that period of wars which opened the way for capitalist development in Europe and North America. In spite of its doctrinal and educational importance, the attempts of the International to mingle in world politics must all the more clearly have shown the advanced workingmen of all countries their impotence as against the national class state. The Paris Commune, flaring up out of the war, was the culmination of the First International.  Just as the Communist Manifesto was the theoretical anticipation of the modern labour movement, and the First International was the practical anticipation of the labour associations of the world, so the Paris Commune was the revolutionary anticipation of the dictatorship of the proletariat.
But only an anticipation, nothing more. And for that very reason it was clear that it is impossible for the proletariat to overthrow the machinery of state and reconstruct society by nothing but revolutionary improvisations. The national states that emerged from the wars created the one real foundation for this historical work, the national foundation. Therefore, the proletariat must go through the school of self-education.
The First International fulfilled its mission of a nursery for the National Socialist Parties. After the Franco-Prussian War and the Paris Commune, the International dragged along a moribund existence for a few years more and in 1872 was transplanted to America, to which various religious, social and other experiments had often wandered before, to die there.
Then began the period of prodigious capitalist development, on the foundation of the national state. For the labour movement this was the period of the gradual gathering of strength, of the development of organization, and of political possibilism, or opportunism.
In England the stormy period of Chartism , that revolutionary awakening of the English proletariat, had completely exhausted itself ten years before the birth of the First International. The repeal of the Corn Laws (1846) and the subsequent industrial prosperity that made England the workshop of the world, the establishment of the ten-hour working day (1847), the increase of emigration from Ireland to America, and the enfranchisement of the workers in the cities (1867), all these circumstances, which considerably improved the lot of the upper strata of the proletariat, led the class movement in England into the peaceful waters of trade unionism and its supplemental liberal labour policies.
The period of possibilism, that is, of the conscious, systematic adaptation to the economic, legal, and state forms of national capitalism, began for the English proletariat, the oldest of the brothers, even before the birth of the International, and twenty years earlier than for the continental proletariat. If nevertheless the big English unions joined the International at first, it was only because it afforded them protection against the importation of strike breakers in wage disputes. 
The French labour movement recovered but slowly from the loss of blood in the Commune, on the soil of a retarded industrial growth, and in a nationalistic atmosphere of the most noxious greed for “revenge”. Wavering between an anarchistic “denial” of the state and a vulgar-democratic capitulation to it, the French proletarian movement developed by adaptation to the social and political framework of the bourgeois republic.
As Marx had already foreseen in 1870, the centre of gravity of the Socialist movement shifted to Germany.
After the Franco-Prussian War, unified Germany entered upon an era similar to the one England had passed through in the twenty years previous: an era of capitalist prosperity, of democratic franchise, of a higher standard of living for the upper strata of the proletariat.
Theoretically, the German labour movement marched under the banner of Marxism. Still in its dependence on the conditions of the period, Marxism became for the German proletariat not the algebraic formula of the revolution that it was at the beginning, but the theoretic method for adaptation to a national-capitalist state crowned with the Prussian helmet. Capitalism, which had achieved a temporary equilibrium, continually revolutionized the economic foundation of national life. To preserve the power that had resulted from the Franco-Prussian War, it was necessary to increase the standing army. The middle class had ceded all its political positions to the feudal monarchy, but had intrenched itself all the more energetically in its economic positions under the protection of the militaristic police state. The main currents of the last period, covering forty-five years, are: victorious capitalism, militarism erected on a capitalist foundation, a political reaction resulting from the intergrowth of feudal and capitalist classes—a revolutionizing of the economic life, and a complete abandonment of revolutionary methods and traditions in political life. The entire activity of the German Social Democracy was directed towards the awakening of the backward workers, through a systematic fight for their most immediate needs—the gathering of strength, the increase of membership, the filling of the treasury, the development of the press, the conquest of all the positions that presented themselves, their utilization and expansion. This was the great historical work of the awakening and educating of the “unhistorical” class.
The great centralized trade unions of Germany developed in direct dependence upon the development of national industry, adapting themselves to its successes in the home and the foreign markets, and controlling the prices of raw materials and manufactured products. Localized in political districts to adapt itself to the election laws and stretching feelers in all cities and rural communities, the Social Democracy built up the unique structure of the political organization of the German proletariat with its many-branched bureaucratic hierarchy, its one million dues-paying members, its four million voters, ninety-one daily papers and sixty-five party printing presses. This whole many-sided activity, of immeasurable historical importance, was permeated through and through with the spirit of possibilism.
In forty-five years history did not offer the German proletariat a single opportunity to remove an obstacle by a stormy attack, or to capture any hostile position in a revolutionary advance. As a result of the mutual relation of social forces, it was constrained to avoid obstacles or adapt itself to them. In this, Marxism as a theory was a valuable tool for political guidance, but it could not change the opportunist character of the class movement, which in essence was at that time alike in England, France and Germany. For all the undisputed superiority of the German organization, the tactics of the unions were very much the same in Berlin and London. Their chief achievement was the system of tariff treaties. In the political field the difference was much greater and deeper. While the English proletariat were marching under the banner of Liberalism, the German workers formed an independent party with a Socialist platform. Yet this difference does not go nearly as deep in politics as it does in ideologic forms and the forms of organization.
Through the pressure that English labour exerted on the Liberal Party it achieved certain limited political victories, the extension of suffrage, freedom to unionize, and social legislation. The same was preserved or improved by the German proletariat through its independent party, which it was obliged to form because of the speedy capitulation of German liberalism. And yet this party, while in principle fighting the battle for political power, was compelled in actual practice to adapt itself to the ruling power, to protect the labour movement against the blows of this power, and to achieve a few reforms. In other words: on account of the difference in historical traditions and political conditions, the English proletariat adapted itself to the capitalist state through the medium of the Liberal Party; while the German proletariat was forced to form a party of its own to achieve the very same political ends. And the political struggle of the German proletariat in this entire period had the same opportunist character limited by historical conditions as did that of the English proletariat.
The similarity of these two phenomena so different in their forms comes out most clearly in the final results at the close of the period. The English proletariat in the struggle to meet its daily issues was forced to form an independent party of its own, without, however, breaking with its liberal traditions; and the party of the German proletariat, when the War forced upon it the necessity of a decisive choice, gave an answer in the spirit of the national-liberal traditions of the English labour party.
Marxism, of course, was not merely something accidental or insignificant in the German labour movement. Yet there would be no basis for deducing the social-revolutionary character of the party from its official Marxist ideology.
Ideology is an important, but not a decisive factor in politics. Its role is that of waiting on politics. That deep-seated contradiction, which was inherent in the awakening revolutionary class on account of its relation to the feudal-reactionary state, demanded an irreconcilable ideology which would bring the whole movement under the banner of social revolutionary aims. Since historical conditions forced opportunist tactics, the irreconcilability of the proletarian class found expression in the revolutionary formulas of Marxism. Theoretically, Marxism reconciled with perfect success the contradiction between reform and revolution. Yet the process of historical development is something far more involved than theorizing in the realm of pure thought. The fact that the class which was revolutionary in its tendencies was forced for several decades to adapt itself to the monarchical police state, based on the tremendous capitalist development of the country, in the course of which adaptation an organization of a million members was built up and a labour bureaucracy which led the entire movement was educated—this fact does not cease to exist and does not lose its weighty significance because Marxism anticipated the revolutionary character of the future movement. Only the most naive ideology could give the same place to this forecast that it does to the political actualities of the German labour movement.
The German Revisionists were influenced in their conduct by the contradiction between the reform practice of the party and its revolutionary theories. They did not understand that this contradiction is conditioned by temporary, even if long-lasting circumstances and that it can only be overcome by further social development. To them it was a logical contradiction. The mistake of the Revisionists was not that they confirmed the reformist character of the party’s tactics in the past, but that they wanted to perpetuate reformism theoretically and make it the only method of the proletarian class struggle. Thus, the Revisionists failed to take into account the objective tendencies of capitalist development, which by deepening class distinctions must lead to the Social Revolution as the one way to the emancipation of the proletariat. Marxism emerged from this theoretical dispute as the victor all along the line. But Revisionism, although defeated on the field of theory, continued to live, drawing sustenance from the actual conduct and the psychology of the whole movement. The critical refutation of Revisionism as a theory by no means signified its defeat tactically and psychologically. The parliamentarians, the unionists, the comrades continued to live and to work in the atmosphere of general opportunism, of practical specializing and of nationalistic narrowness. Reformism made its impress even upon the mind of August Bebel, the greatest representative of this period.
The spirit of opportunism must have taken a particularly strong hold on the generation that came into the party in the eighties, in the time of Bismarck’s anti-Socialist laws and of oppressive reaction all over Europe. Lacking the apostolic zeal of the generation that was connected with the First International, hindered in its first steps by the power of victorious imperialism, forced to adapt itself to the traps and snares of the anti-Socialist laws, this generation grew up in the spirit of moderation and constitutional distrust of revolution. They are now men of fifty to sixty years old, and they are the very ones who are now at the head of the unions and the political organizations. Reformism is their political psychology, if not also their doctrine. The gradual growing into Socialism—that is the basis of Revisionism—proved to be the most miserable Utopian dream in face of the facts of capitalist development. But the gradual political growth of the Social Democracy into the mechanism of the national state has turned out to be a tragic actuality—for the entire race.
The Russian Revolution [of 1905] was the first great event to bring a fresh whiff into the stale atmosphere of Europe in the thirty-five years since the Paris Commune. The rapid development of the Russian working class and the unexpected strength of their concentrated revolutionary activity made a great impression on the entire civilized world and gave an impetus everywhere to the sharpening of political differences. In England the Russian Revolution hastened the formation of an independent labour party. In Austria, thanks to special circumstances, it led to universal manhood suffrage. In France the echo of the Russian Revolution took the form of Syndicalism, which gave expression, in inadequate practical and theoretical form, to the awakened revolutionary tendencies of the French proletariat. And in Germany the influence of the Russian Revolution showed itself in the strengthening of the young Left wing of the party, in the rapprochement of the leading Centre to it, and in the isolation of Revisionism. The question of the Prussian franchise, this key to the political position of Junkerdom, took on a keener edge. And the party adopted in principle the revolutionary method of the general strike. But all this external shaking up proved inadequate to shove the party on to the road of the political offensive. In accordance with the party tradition, the turn toward radicalism found expression in discussions and the adoption of resolutions. That was as far as it ever went.
The General Association of German Workers was founded at Leipzig on 23rd March 1863. President: Ferdinand Lassalle (1825-1864); Vice-President: Dr. Otto Dammer; Secretary: Karl Julius Valteich, a shoemaker (1839-1915).
The Paris Commune: Following France’s defeat in the war of 1870-71, the workers of Paris seized power. On March 28, 1871 the Commune was declared. It was drowned in blood May 21-28, 1871. Some 20,000 to 30,000 Communards, including women and children, were killed, 270 executed after “trial”, 400 jailed, 7,000 transported from the country. The Commune marked the end of monarchy in France and the beginning of the Third Republic. The International Workingmen’s Association (the First International) was founded by Marx and Engels in 1864. In its “first phase” it served as the rallying point of various European national sections. After the Paris Commune, in 1872, the centre was moved to New York. It was dissolved in 1876.
Chartism: An English movement for parliamentary reform (universal male suffrage, annual parliaments, vote by ballot, payment of MPs, equal electorates, abolition of property qualification, etc.) began in 1838 as a campaign to collect signatures to the People’s Charter. It had some violent episodes (24 killed at Manchester and Newport on November 3, 1839), had its ups and downs and flared up finally in April 1848.
the summer of 1866, British Railways tried to import cheap Belgian labour. The First International committed itself to stop blacklegging. (See Minutes of the General Council 1866-68, p. 333).