>>5496274Fair. I am aware that actually a number of forge worlds of the 500 worlds were started shortly after Guilliman's discovery. The point being more to play a hand in their formation perhaps.
Although, another that comes to mind that was founded since the Dark Age.
Forge World Accatran
https://warhammer40k.fandom.com/wiki/Accatran>"It was settled sometime during the Dark Age of Technology by early Mechanicum Explorators.">>5496301Anon puts it well, whichever parts are relevant keep em.
