Last weeks "Discover Weekly" had a track by Royal Trux called, I think, El President...or at least had President in the title I think........I can't find it anywhere...not Spotify, YouTube etc......Can anyone help me out tracking it down...'cos...well it was really good!
Even if I can't help you recover past Discover Weekly playlists I can recommend you two things you can do, so it won't happen again in the future.
Firstly, open a last.fm account. It's a great way to keep track of what you listen in Spotify, and most other music players. You just need to add your last.fm account info in the Spotify preferences, and you'll log what you listen to. With this, you'll be able to see what you were listening at any point in time. Very useful!