Welles' 1938 "The War of Worlds radio play" provoked a real Martian invasion scare---it was a radio play, NOT a hoax, but it was done in a you-are-there fashion---heck it was Oct30, the day before Halloween---on the other hand, Welles was a bit of wag.
By the by, Welles was NO relation to the author of The War of the Worlds (1898), H. G. Wells (1866--1946), but it's plausible that their homonymous surnames suggested the "The War of Worlds radio play" to Welles.
See Orson Welles videos below:
Credit/Permission: Carl Van Vechten (1880--1964),
(uploaded to Wikipedia
Image link: Wikipedia: File:Orson Welles 1937.jpg.
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