« first day (866 days earlier)      last day (3998 days later) » 

16:09
Google's John Mueller just gave an official answer to this question that mostly contradicts the accepted answer: webmasters.stackexchange.com/questions/54054/…
 
2 hours later…
18:07
@StephenOstermiller I like when he chimes in. There is no question about the accuracy of his information.

« first day (866 days earlier)      last day (3998 days later) »