The TTC was established in 1921 to consolidate and operate the various privately owned and municipal transit systems in Toronto. Over the years, it has grown to become North America's third-largest transit system by ridership, after New York City and Mexico City. The TTC has played a crucial role in Toronto's development, with its subway system opening in 1954 and continually expanding. Despite challenges such as funding issues and aging infrastructure, the TTC remains an integral part of Toronto's urban fabric, constantly working to improve service and adopt new technologies to enhance the passenger experience.