What was the first commercial railroad of America in nineteenth century?

The first commercial railroad in America was the Baltimore and Ohio Railroad (B&O), founded in 1827. It aimed to provide a connection between the port of Baltimore and the Ohio River, facilitating trade and transportation. The B&O began its first passenger service in 1829, marking a significant milestone in the development of the U.S. railroad system. This railroad set the stage for the expansion of rail networks across the country in the 19th century.