How do I download and activate GM 1.49999?

My email I received many years ago has my product license key for GameMaker Studio but when I go to my Purchases on my account overview for GameMaker, I see a few assets that I've downloaded over the years, I see GameMaker 2 that I purchased, but I do NOT see GameMaker Studio (1.4999). The link to download GM 1.49999 on that email takes me to a invalid page that has obviously been taken down.

I found a download link for GameMaker Studio but when I enter my license key from my email I've...

How do I download and activate GM 1.49999?