How this possible that user joined to Github before Github founded.
Okay but Github founded in 2008.How this is possible that user joined in 1998?
Git history can be imported from other version control tools, which have existed since before GitHub (or Git, for that matter) were created. The timestamps on the changes can be preserved to point to the original time the commit was made using, say, SVN, instead of the timestamp of the import from SVN to Git.
The oldest commit from the user in the screenshot: https://github.com/mihaip/mscape/commit/7e22d91396b8a73dbdea4cfc44e8630072069199
As per the MScape website, all this software is defunct: https://www.mscape.com/