// todo need optimize like in event.jsp. Add indexing or not indexing this page. FM radio emerges to the public (dec 29, 1969 – sep 3, 1977) (Timeline)
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FM radio emerges to the public (dec 29, 1969 – sep 3, 1977)

Added to timeline:

17 Sep 2017

Date:

dec 29, 1969
sep 3, 1977
~ 7 years and 8 months