when did guiding light go off the air
Guiding Light Guiding Light (known as The Guiding Light before 1975) is an American television soap opera. It is listed in Guinness World Records as the longest-running drama in television in American history, broadcast on CBS for 57 years from June 30, 1952, until September 18, 2009, overlapping a 19-year broadcast on radio from 1937 to 1956.[1] Its radio and television runs taken together, Guiding Light is the longest running soap opera[4][a] and the fifth-longest running program in all of broadcast history; only the American country music radio program Grand Ole Opry (first broadcast in 1925), the BBC religious program The Daily Service (1928), the CBS religious program Music and the Spoken Word (1929), and the Norwegian children's radio program Lørdagsbarnetimen (first aired in 1924, cancelled in 2010) have been on the air longer.
Traffic light The world's first traffic light was short lived. It was a manually operated gas-lit signal installed in London in December 1868. It exploded less than a month after it was implemented, injuring[2] its policeman operator. Traffic control started to seem necessary in the late 1890s and Earnest Sirrine from Chicago patented the first automated traffic control system in 1910. It used the words "STOP" and "PROCEED", although neither word lit up.[3]