Check this very comprehensive interactive timeline on the algorithm update from Google
Google is set to release an algorithm update on April 21st (Tuesday) and it is likely to be quite significant as they continue their efforts to enhance the user experience of the Internet.
Eddie O’ Driscoll from DPFOC writes …
We have prepared an interactive timeline to mark this event. It charts the history of the various algorithm updates and related news over the years. You can view it here
