One of the things that put me off using Medium (other than the lack of ownership of the content) is that you can't set a historic date for a post.
The reason for this being I had always intended to re-post some of my old posts, I'm not sure how many of them are actually of much use though, but I do have a habit of never deleting anything.
Anyway, I might put some up, so don't be surprised if post dates prior to 2016 appear :)