A Proﬁle of the US A Nation of Cities...In the 1800s, the US economy was based on Agriculture. As innovations improved transportation and communication, the focus of the economy shifted to industry, manufacturing, and later, service industries
A Proﬁle of the USSo the population began migrating away from farms and small towns... and to moving to larger cities. The US now has more than 250 Metropolitan Areas (a major city and its surrounding suburbs).
Railroads Railroads united the country inthe mid to late-1800s allowing for easier travel for individuals, and more importantly, transportation of goods. Chicago, centrally located between the east and west coasts, became a center of trade and the largest city in the midwest.
Canals In the early 1800s, a canal was created that connected by waterway New York City and Lake Erie at Buffalo and Niagara Falls. Rochester Buffalo Cleveland Toledo Detroit This canal allowed for goods to be Saginawshipped from the east coast through the Grand RapidsGreat Lakes, all the way to the midwest. Chicago Cities grew along this trade route, Milwaukeethrough New York state and around the Green Bay Great Lakes. Duluth
Automobiles Automobiles gave individuals more freedom for travel. People could work in a large city and live in a suburb. In 1956, The Federal-Aid Highway Act provided funds to build 4,000 miles of interstate highway.
Because of improvements in Transportation (and inCommunication), people began to have more freedom in choosing where to live. Many chose to live in warmerclimates, so cities in the Southeast and desert Southwest began to grow. Phoenix, Arizona Miami, Florida Atlanta, Georgia