I once corrected the Oxford English Dictionary
I spotted something in one of the definitions that was wrong. They'd cited a poem as a reference and had the title and date of the poem wrong. So I wrote them an email and I got a reply back thanking me for pointing out the mistake and promising to correct it in the next edition, which they did.

Quite boring, but it does mean when someone tells me something's right because the dictionary says so I can just go "I fucking CORRECT the dictionary!".

Lots of people at work don't like me much.
(SnowyTheWereRabbit the Leporid from Hell, Fri 17 Oct 2014, 10:16, 7 replies)

citation needed

( d.r._and_quinch when will you be famous?, Fri 17 Oct 2014, 10:24, closed)

I did have the email
printed out and framed for a couple of years. Then someone pointed out it was a bit tragic and I left it behind in a flat move.
(SnowyTheWereRabbit the Leporid from Hell, Fri 17 Oct 2014, 10:26, closed)

Seriously, what was the definition and what was the word and what was the correction. Which edition of the
OED and when was it corrected.
( d.r._and_quinch when will you be famous?, Fri 17 Oct 2014, 10:53, closed)

Gelid
Correction from 2nd edition to 3rd edition (which isn't out yet) but it's corrected on the web edition.
(SnowyTheWereRabbit the Leporid from Hell, Fri 17 Oct 2014, 11:04, closed)

cheers

( d.r._and_quinch when will you be famous?, Fri 17 Oct 2014, 11:36, closed)

I like this and don't think it's at all tragic to keep the email...

In fact, I'm rather jealous of your achievement and wish it had happened to me.

Now THAT'S tragic!
( Pooflake braces for an onslaught..., Fri 17 Oct 2014, 10:37, closed)

I did something similar once.
I spotted a typo in the SOED. The difference here is that I didn't notify them.

Nor did I remember what it was.
( Enzyme is powered by sunlight, Fri 17 Oct 2014, 12:00, closed)