I think many developers like to investigate sources with the help of git gui blame. As explained in the commit for Linux-2.6.12-rc2 (also mirrored at Github), it needs to have special historical Linux repository for this purpose.
Linux-2.6.12-rc2
Initial git repository build. I’m not bothering with the full history, even though we have it. We can create a separate “historical” git archive of that later if we want to, and in the meantime it’s about 3.2GB when imported into git — space that would just make the early git days unnecessarily complicated, when we don’t have a lot of good infrastructure for it.
Let it rip!
I have looked at a lot of the prepared historical repositories but I didn’t find one containing changes going back to version zero, so I gave up and am asking this question here.