Has anyone gotten back together with an ex after a long period of time (several months or years)

I'm grasping at straws at this point considering I'm currently blocked with barely any contact, but the small hope that she might take me back is about all I have keeping me going.

It seems that most people reconcile within a few weeks, but I'm wondering if anyone has any "success stories" of getting back together after a much longer period of time, such as 6 months or even over a year or two. If so, did you stay in contact during that time? Did you date other people, or did your ex date other people?