But some companies have been around for a very very long time.
Kongō Gumi Co., Ltd. (株式会社金剛組, Kabushiki Gaisha Kongō Gumi) is a Japanese construction company founded in 578 A.D., making it the world's oldest company.
Huh, according to Wikipedia (without citation, unfortunately), that ancient construction company pioneered the use of CAD for temple design. I wanted to see if I could corroborate this claim, so "kongo gumi cad" on Google lead to: https://worksthatwork.com/3/kongo-gumi which makes a very similar claim. From what I can tell, this claim is echoed all over the (English) internet but originates from "worksthatwork.com".
The earliest wayback snapshot of that website from 2014 doesn't mention CAD, but the March 30, 2015 snapshot does. Looking at the wikipedia article edit history, there seems to be an edit war happening regarding the accuracy of sources (someone seems to believe very strongly that Nikkei Asia is not a reliable source): https://en.wikipedia.org/w/index.php?title=Kong%C5%8D_Gumi&o...
Well, this was a strange rabbithole to fall down. I'm interested to know from where this claim originates, or if "worksthatwork.com" just made it up in 2015. The answer probably lies beyond the English language internet.
I wish Wikipedia had a "blame" feature like git. If it exists, I couldn't find it.
> I wish Wikipedia had a "blame" feature like git. If it exists, I couldn't find it.
If there is an edit war going on, and this claim is being removed and added you’d still need to look at quite a lot of revisions manually.
But there are tools to export Wikipedia page edit history to git I think. And you could write a script to grep every revision of the article for the word “CAD” to determine at what point in time it first appeared in the article. And then from there you could look at who added it and so on.