At http://www.google.com/intl/en/policies/terms/archive/ you can see at least one previous versions of Google's terms
Comments:
On 2018-01-16 15:28:05 UTC, someone wrote:
imported from damOWTFaho0-1
We track editorial changes to analyses and updates to a point's status and display the previous versions here as part of an effort to promote transparency regarding our curation process.