Graduate Certificates in History by distance learning

Does anyone have any information on graduate certificates (15-18 credits) in history by distance learning? I already have two master's degrees and would like to obtain a grad. cert. to bolster my credentials for adjunct college teaching after I retire from teaching social studies at the high school level.

 

I think you'll find that there are more than a few around. Here's one from a very prestigious school that we don't usually talk about in terms of distance learning, the University of Edinburgh.

Degree finder | Postgraduate study.

 

WNMU has some a graduate history certificate.