On Thursday, 28 May 2020 at  9:30:09 -0400, Clem Cole wrote:
> fmt was originally written by Kurt Shoens at UCB when he worked in Mail and
> delivermail.

That agrees with the FreeBSD man page:

HISTORY
     The fmt command appeared in 3BSD.

     The version described herein is a complete rewrite and appeared in
     FreeBSD 4.4.

AUTHORS
     Kurt Shoens
     Liz Allen (added goal length concept)
     Gareth McCaughan

Greg
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