August 2nd, 2020. That's the earliest record we have of Scratch OS even being a thing. My uncle visited my house that day, and I made him a scratch account and we made remix 8.0, on an alt account, an alt that wasn't banned along with tissssssy. That's the only reason we have this build as our oldest, and not Scratch OS 2.03 v6 (September 1st 2020).
I backtracked from here, and saw that I added the navigation bar, 9 buttons menu, clock, platformer, and licky cat easter egg, so I removed those to backtrack to what remix 7.0 may have looked like.