After the War of 1812, thousands of settlers and immigrants moved to the western frontiers of the United States in search of farming and business opportunities. In response, the government began building roads. This transportation network was intended to promote the system. i dont know the answer...

polisit can also mean a body of citizens. in modern historiography, polis is normally used to indicate the ancient greek city-states, like classical athens and its contemporaries, and thus is often translated as "city-state". the body of citizens came to be the most important meaning of the term polis in ancient greece.