Allow user to view history of their activity across all projects and repos

I frequently have a need to look back through my commits to find out what I was working on during a given date and time. A view showing all my activity, across all projects and repos, would be incredibly useful for this task.

This is effectively what "Recent activity" shows on the user profile page, only it would allow the user to view further back in time. A link to "view more" at the bottom of "Recent activity", for example, sounds like a reasonable approach.

Even just extending "Recent" to a couple weeks would make a tremendous difference.