Revolutions of 1848 carried out, occurred in Greater Poland. Next, the middle classes began to agitate. Karl Marx and Friedrich Engels, working in Brussels, had written "Manifesto of the Communist Party" (published in German in London on February 21, 1848) at the request of the Communist League (an organization consisting principally of German workers). Following the March insurrection in Berlin, they began agitating in Germany. They issued their "Demands of the Communist Party in Germany" from Paris in March; the pamphlet urged unification of Germany, universal suffrage, abolition of feudal duties, and similar middle-class goals. The middle and working classes thus shared a
Punctuated equilibrium in social theory groups and organizations, the history of science, physical science, and biological evolution - and found evidence for punctuated equilibria (as opposed to steady, incremental change) across those disparate systems. Applications of the theory have been in organizational theory, in the study of small work groups, in research on geographic communities and corporate behavior, and in the study of technological change. As some researchers have noted, the biological applications of punctuated equilibrium have rejuvenated a new "theory about change within entities." At the same time, social scientific applications of the punctuated equilibrium concept have been criticized for losing sight of a