Historic railroads played a crucial role in the development of transportation and commerce. They connected distant regions, allowing for the efficient movement of goods and people. Notable examples include the Transcontinental Railroad in the United States, which linked the east and west coasts, and the London and Birmingham Railway in the UK, which was one of the first major railways. These railroads often featured steam locomotives, which revolutionized travel in the 19th century. The impact of historic railroads can still be seen today, as many routes have been preserved as heritage railways, offering a glimpse into the past and promoting tourism.