Erie Canal: The Erie Canal was a major waterway built in the early 19th century that connected the Great Lakes region with New York City. It revolutionized transportation by providing a direct route for goods between the Midwest and East Coast.
Transcontinental Railroad: The Transcontinental Railroad was a massive railway system completed in 1869 that connected the east coast with the west coast of the United States. It greatly facilitated trade, migration, and communication across vast distances.
National Highway System: The National Highway System is an extensive network of highways that spans across all states in America. It was initially authorized by President Dwight D. Eisenhower in 1956 to improve national defense readiness but also had significant impacts on commerce and travel within the country.