In the supreme attempt to reveal in Peru those engines of momentum that allowed to the underground set in motion and dynamic evolution of the first years of the republican history of the twentieth century. The interest is based on to argue, around others, some edges of the impact that meant for the readership of the proprietor of the 7 essays the behavior of a historical stage more tightly in the late 19th and early 20th centuries, as two periods of rupture and socio-emotional paralysis syndrome left by the Pacific War (1879-1883); but at the same time, of civilizatory movement of challenge, resistance and construction never before seen and articulated collectively by the supervened effects of the penetration of the first and incipient capitalizing energies in the Peruvian territory and of which it was a key piece of that untamed resistance, José Carlos Mariátegui (1894-1930).