1 gen 1820 anni - Missouri Compromise

Descrizione:

Surveying and mapping activities flourished in the United States as people began moving inland over the inadequately mapped continent. The settlement of the frontier, the development of agriculture, and the exploitation of natural resources generated a demand for new ways to move people and goods from one place to another. Privately owned toll or turnpike roads were followed first by steamships on the navigable rivers and by the construction of canals and then in the 1830s by the introduction of railroads for steam-powered trains

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