Pinedo, Oscar2023-07-032023-07-031937-02https://hdl.handle.net/1794/2847168 pagesFor more than four hundred years, the virgin regions of the Amazon plains in South America have been known as the most richly endowed in the world, where rivers form a veritable network of natural lines of communication that converge in the Amazon river and thus flow into the Atlantic Ocean. In the Republic of Peru are the highest portions and there rises the great river in the lofty peaks of the Andes Mountains. For many years there has been immigration into the valley and now various peoples are found established along the river banks. At present the settlements have spread along the river only, logically enough, because of the facilities of river transportation.enCreative Commons BY-NC-ND 4.0-USimmigrationriver transportationimportsThesis / Dissertation