There was an array of growth that occurred between 1815 and 1850. There was an expansion of agriculture, rise in industry, and advancement of transportation. At the time of Jefferson’s embargo and the war of 1812, Americans were compelled to rely on themselves for the manufactured goods they desired. Because of the new demand for goods, there became a need for more adequate ways of transportation. Therefore, well maintained, paved roads became an obligation for the government to stand by. The arrival of steam technology was used on boats to ensure safe arrival, for people as well as goods. With the railroads being less expensive to build, and easier to maintain, they became the dominant shipping method. The clipper ships were the latest technology.