A new article claims that Orson Welles' 1938 broadcast of "War of the Worlds" did NOT cause a nationwide panic. 

According to legend the broadcast convinced people all over the country that Martians had invaded -- but according to the article on Slate.com, almost nobody was fooled.

Ratings from that night show very few people were listening and many stations had preempted the broadcast.

The writers say the story of a nationwide panic was originally popularized by newspapers, which were competing with radio at the time, and editors were quick to jump anything critical of radio.

Wednesday marks the 75th anniversary of the broadcast.

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