Henry Bent wrote:
MIT and Stanford PDP-10 archives have various HOSTS
files going back
to the mid 1970s.
Links? I have not the slightest idea where to start looking for those
archives
Hopefully they will be more accessible in the future. For now, here's a
link to the oldest 1977 copy of HOSTS.TXT in Mark Cripin's directory on
the SAIL PDP-10:
https://www.saildart.org/HOSTS.TXT[NET,MRC]1