From the YouTube site:
Presented by Zoro, this series of video lessons features some of the grooves that charted the course of history -- starting in the 1940s when shuffles ruled the airwaves, through the dawning of drum-machine inspired hip-hop beats in the late 1970s.
Zoro explains each groove in the series, why the beat made an impact as well as some insights into the feel. In all, Zoro breaks down 23 of the drum grooves that charted R&B/Funk/Hip-Hop history.
Check out the full feature on vicfirth.com: