<div dir="auto">The NIC collection at CHM has info about this. The draft RFCs where Postel first proposed TLDs (between Jan and May 85 I believe) all proposed UK as examples. Discussion on the "Namedroppers" list at the time made it pretty clear why: the UCL nodes used the NRS (Name Recocognition Scheme) and already had UK at the top level (though reversed)</div><br><div class="gmail_quote"><div dir="ltr">On Fri, Apr 13, 2018, 22:12 Patrik Fältström <<a href="mailto:paf@frobbit.se">paf@frobbit.se</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On 13 Apr 2018, at 15:12, John Levine wrote:<br>
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> In another list someone was wondering why British domain names are mostly in .UK even though the ISO 3166 code has always been .GB.<br>
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> I know this came up before but can't find the discussion. Pointers or rehash welcome. The first mention I can find of .UK is in an example in RFC 821 in 1982, the first statement that ccTLDS would be ISO 3166 codes was in 1984.<br>
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The only explanation I got orally was that "GB stands for Great Britain, while UK stands for United Kingdom of Great Britain and the Northern Ireland".<br>
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That was enough for me. Don't even remember who explained it, but it was around the famous entry of .CS into the root zone that created the "interesting" situation with <a href="http://CS.BERKELEY.EDU" rel="noreferrer noreferrer" target="_blank">CS.BERKELEY.EDU</a> (and others) and massive weird extra hacking in <a href="http://sendmail.cf" rel="noreferrer noreferrer" target="_blank">sendmail.cf</a> due to the Janet "reverse" order of labels in a domain name.<br>
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But, I might also have constructed this story in my head... :-)<br>
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paf<br>
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