The document summarizes early transportation methods in New York and the United States, including the construction and impact of the Erie Canal. The Erie Canal was built from 1798 to 1819 to allow goods from western New York to be shipped east to New York City more easily. Its construction, led by Governor DeWitt Clinton, was initially mocked but proved very successful. It cut shipping costs and travel time drastically, boosted population growth in the west, and increased New York City's prominence. It also strengthened national unity. The invention of the steamboat by Robert Fulton in 1807 further improved shipping.