oct 26, 2015 - RankBrain*
Description:
Google made a major announcement, revealing that machine learning had been a part of the algorithm for months, contributing to the 3rd most influential ranking factor. *Note: This is an announcement date - we believe the actual launch was closer to spring 2015.Added to timeline:
Date:
oct 26, 2015
Now
~ 9 years and 7 months ago