At 6:00 am on May 7, 1895, the first train of the Metropolitan West Side Elevated left the Robey Street station bound for the downtown terminal at Canal.

[1] In 1913, Chicago's four elevated railroad companies came together to form the Chicago Elevated Railways Collateral Trust establishing crosstown services for the first time.

[5] The construction of the Eisenhower Expressway (I-290) required the demolition of the Garfield Park branch and the Main Line but also called for a replacement rapid transit line in the median of the expressway.

In 1958, the Garfield Park Branch was replaced by the new Congress Line.

[6] Much of the Metropolitan still operates today, with the Blue Line using a portion of the Logan Square branch on its way to O'Hare International Airport, as well as the Congress Line that replaced the Garfield Park Branch.