The Grand Trunk Railway (GTR) is one of the oldest and most significant railway systems in North America, established in the early 19th century. It originally connected the cities of Montreal, Toronto, and Chicago, facilitating trade and travel across Canada and the United States. The railway played a crucial role in the economic development of the regions it served. Founded in 1852, the GTR expanded over the years, incorporating various lines and services. It became a key player in the transportation industry, linking major cities and rural areas. The railway's legacy continues today, as it laid the groundwork for modern rail networks in both countries.