The Detroit News summed up the momentous event a few years later:
"Everything was found to be satisfactory, and on Aug. 31, which was primary election day, it was announced that the returns — local, state and congressional — would be sent to the public that night by means of the radio.
The News on Wednesday, Sept. 1, 1920, carried the following announcement: “The sending of the election returns by The Detroit News’ radiophone Tuesday night was fraught with romance and must go down in the history of man’s conquest of the elements as a gigantic step in his progress.
In the four hours that the apparatus, set up in an out-of-the-way corner of The News Building, was hissing and whirring its message into space, few realized that a dream and a prediction had come true. The news of the world was being given forth through this invisible trumpet to the waiting crowds in the unseen market place” (http://www.wired.com/2010/08/0831first-radio-news-broadcast/, accessed 10-19-2014).
8MK changed its call letters to WBL in 1921 and then to WWJ in 1922.