[TUHS] primary sources for the 1966 Multics ASCII cutover as the first "Flag Day"?

[Warner Losh]

On Fri, Jul 18, 2025, 9:02 PM David Arnold <davida at pobox.com> wrote:

> On 19 Jul 2025, at 12:44, Tom Perrine <tom.perrine+tuhs at gmail.com> wrote:
>
>
> <…>
>
> I think there may also be a reference to Flag Day in the original printed
> Hacker's Dictionary, and I think in the Jargon file from which it was
> derived? I don't have any old copies of either around to check
>
>
> It’s in the “New Hackers Dicrionary” from 1991:
>
>
> https://www.dropbox.com/scl/fi/rwgb1ajk4n3sfkb2ejbd6/Photo-19-7-2025-12-54-49.jpg?rlkey=h7oujitglxgjo81ha1hfwhrg8&st=21m4tev8&dl=0
>
>
> https://www.dropbox.com/scl/fi/v1h4myystwj0pirgcaa1z/Photo-19-7-2025-12-55-21.jpg?rlkey=klpksras27cstpsva6rce7mkl&st=e5hme9oi&dl=0
>
>
> https://www.dropbox.com/scl/fi/jp4tlisj2j33ldzdt4n99/Photo-19-7-2025-12-56-27.jpg?rlkey=t0ry8hxzg9rj4xhwyi48ua6c2&st=knz9ujuk&dl=0
>

RFC 801 documents the NCP to TCP flag day of Jan 1, 1982. But doesn’t use
that term despite latter day documents using that term.

Warner

>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.tuhs.org/pipermail/tuhs/attachments/20250718/e1e9f8ba/attachment.htm>