Having trouble staying up with Google's algorithm updates? Not sure if you're dealing with Pandas or Penguins - or even Hummingbirds, for that matter? No idea what I'm talking about?
If this is you, the team an OnCrawl have put together an infographic which details every major Google algorithm update from the past 12 years. If you're wondering why your search traffic dropped off at some point, cross-reference against this listing to see if maybe you've copped a Google penalty in amongst the various updates and changes.
The original infographic source is available here.