Here's the Git log on the GitHub repo: <a href="https://github.com/twitter/vireo/commits/master" rel="nofollow">https://github.com/twitter/vireo/commits/master</a> . As of this writing, it consists of a single commit with the commit message "first commit."<p>I'll give the devs here the benefit of the doubt that the original project repo has more history than that, but what might be the reason it wasn't preserved when the GitHub repo was created? Copyright reasons? Or someone just couldn't be bothered?