[andsoitis]

> I'm pretty sure that I was the one that came with the idea for adding them to generic text widgets when I implemented that in KDE (originally to add spell checking in KMail, since spell checking in email clients wasn't a thing yet).

When was it that you added it to KMail?

Word '95 introduced the famous red squiggly underlines in 1995.

I believe KMail introduced spell-checking in 2004.

[giancarlostoro]

Reread the claim, the idea to add them to generic text widgets. I think it was around the mid 2000s when Firefox also started adding spellcheck, which is around the time I started learning how to spell things correctly.

[wheels]

As I said, it was about the generic widgets. Your memory on the time though was better than mine. I looked up the commit and it was April 9th, 2003.