Front page flashback:<\/strong> Jan. 24, 1973<\/p>\n 1973:<\/strong> President Richard Nixon addressed the nation about the end of the Vietnam War<\/a>. An agreement \u2014 known as the Paris Peace Accords<\/a> \u2014 was drafted by the United States and the Democratic Republic of Vietnam and would be signed days later.<\/p>\n Weather records <\/strong>(from the National Weather Service, Chicago<\/a>)<\/p>\n 1975:<\/strong> The State-of-the-Art Car<\/a> (SOAC), produced by the U.S. Department of Transportation\u2019s Urban Mass Transportation Administration and Boeing Veritol, arrived in Chicago for a two-week demonstration.<\/p>\n The stainless steel<\/a> two-car system (one designed for 200 passengers and the other for 300) featured a plush interior design, carpeting and air conditioning (which probably wasn\u2019t an impressive feature given it was here during the winter). The system, however, was too wide and too long<\/a> to run on most Chicago Transit Authority lines, so it could only operate on the Skokie Swift (today\u2019s Yellow Line). Engineers designed a retracting platform and other modifications to showcase SOAC\u2019s capabilities.<\/p>\n Though the mock-up was comfortable, it never took off. Despite demonstrations in New York, Boston, Cleveland, Philadelphia and Chicago, SOAC was never adopted.<\/p>\n The two demonstration vehicles now are housed at the Seashore Trolley Museum<\/a> in Kennebunkport, Maine.<\/p>\n Want more vintage Chicago?<\/p>\n Subscribe to the free\u00a0Vintage Chicago Tribune<\/a>\u00a0newsletter, join our\u00a0Chicagoland history Facebook group,<\/a>\u00a0stay current with\u00a0Today in Chicago History<\/a>\u00a0and follow us on\u00a0Instagram<\/a>\u00a0for more from Chicago\u2019s past.<\/p>\n Have an idea for Vintage Chicago Tribune? Share it with Kori Rumore and Marianne Mather at\u00a0krumore@chicagotribune.com<\/a>\u00a0and\u00a0mmather@chicagotribune.com<\/a><\/p>\n \t\t\t![\"President](\"https:\/\/www.europesays.com\/us\/wp-content\/uploads\/2026\/01\/CTC-L-PRESIDENT-NIXON-VIETNAM-WAR-END-1973-01.jpg\")
President Richard Nixon announced on Jan. 23, 1973, that an accord to end the Vietnam War had been agreed to by the United States and the Democratic Republic of Vietnam. (Chicago Tribune)<\/p>\n\n
![\"Two](\"https:\/\/www.europesays.com\/us\/wp-content\/uploads\/2026\/01\/CTC-L-CTA-STATE-OF-THE-ART-CAR-CT0037090478.jpg\")
Two “L” cars, which designers thought embodied the epitome of the dream railcar, is shown here on Jan. 23, 1975. They ran for two weeks on the CTA’s Skokie Swift Line. They only ran on the Skokie Line because they were too wide and too long for the subway and other “L” routes. (Arthur Walker\/Chicago Tribune)<\/p>\n