In the early 1800s, the United States needed room to grow. The problem was most people lived in the East. The cities were crowded. New land was expensive. Young families couldn’t afford to buy farms.
Then, as a solution, the United States government purchased land from France. The government also acquired land from Mexico. Soon the country stretched all the way to the Pacific Ocean. People looked to the setting sun with outstretched arms and said, “Go west!”