Why All Films Have This Disclaimer

Nearly all films have this disclaimer: "This is a work of fiction. any similarities to persons living or dead, or actual events is purely coincidental." You've seen it many times, but you've probably never considered why it was there. Cheddar explains the surprising and unexpected history and reasoning behind this disclaimer.
Further reading:
Slate
slate.com/cult...
Stanford
web.stanford.e...
Story of the Stars web.archive.or...
History.com
www.history.co...
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