What was the long term significance of the Baltimore and Ohio railroad?

The Baltimore and Ohio Railroad (B&O), established in 1827, was significant as it marked the first common carrier railroad in the United States, paving the way for the expansion of rail transport across the nation. It facilitated the movement of goods and people, fostering economic growth and urbanization in the Mid-Atlantic region. The B&O also played a crucial role in linking the Eastern seaboard with the Midwest, enhancing trade routes and contributing to the integration of the American economy. Its innovations in rail technology and operations set the standard for future railroad development.