https://github.com/littlebee/git-time-machine

CoffeeScript
Atom package that allows you to travel back in commit history

git-time-machine package

git-time-machine is a package for Atom that allows you to travel back in time! It shows visual plot of commits to the current file over time and you can click on it on the timeplot or hover over the plot and see all of the commits for a time range.