Understanding War of the Worlds

http://www.archive.org/details/war_worlds_solo_librivox
http://www.waroftheworlds.org/Articles/WarDrama/tabid/137/Default.aspx

 

Richard J. Hand cites studies by unnamed historians who "calculate[d] that some six million heard the CBS broadcast; 1.7 million believed it to be true, and 1.2 million were 'genuinely frightened'".

Hand, Richard J. (2006). Terror on the Air!: Horror Radio in America, 1931–1952. Jefferson, North Carolina: Macfarland & Company. p. 7