The Missouri–Kansas–Texas Railroad was in 1870. In its earliest days the MKT was commonly referred to as "the K-T", which was its stock exchange symbol; this common designation soon evolved into "the Katy". The Katy was the first railroad to enter Texas from the north. Eventually it would grow to link Kansas City and St. Louis, Missouri; Tulsa and Oklahoma City, Oklahoma; Dallas, Fort Worth, Waco, Temple, Austin, San Antonio, Houston, and Galveston.