I think Novemeber is a big month for acceptances. There should be some acceptances from Harvard by the end of the month for some people, Mich and Georgetown.
a significant number of people who applied early to harvard heard back in late november - around the 22nd. They all seemed to be autoadmits or URMs though, so I think you're right.
I think that is the date people went decision on the online status check, not the day they actually received decisions. i would not be surprised if decisions started coming in the next week for the auto-admits.