Searched for https://accounts.google.com/ServiceLogin?passive=1209600&osid=1&continue=https://plus.google.com/%2Byoutube&followup=https://plus.google.com/%2Byoutube
Note: This calendar view maps the number of captures of https://accounts.google.com/ServiceLogin?passive=1209600&osid=1&continue=https://plus.google.com/%2Byoutube&followup=https://plus.google.com/%2Byoutube, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.