How to make a Git commit retroactive?

Question

git

Once upon a time, each version of the program was packed into a separate archive. Then I grew up and switched to GIT.
Now I want to add all previous versions to GIT as well, as if it was originally used for them.
In fact, you need to make several commits retroactively.
But how ?

Answer 1

git rebase.
By the way, do versioning through git tag.

Answer 2

rebase

Answer 3

In general, no way.
But if the repository is local, or a commit is on a branch that is also local, or you don't mind killing the global repository, then you can use
$ git rebase -i commit-in-the-past