Slonimer
“ubiquitous – Please reread my comment”
Please reread mine. I dont have access to EB print SO I dont know one way or another what it says.
I do have access to the online version which does provide a detailed history and does not leave room for a Greco-Roman origin, (Im not sure why you are waffling on what EB says Why “necessarily” in parenthesis?) nor does it provide a religious significance (other than generic thanking God).
Now If as you say online EB is an abridgment of the print version the it says nothing that you claim it does. IF it is entirely different. Again as it very well may be then I simply do not know.
I do know that there is no online source that I cna dig up, so even if their is one print source from 20 yers ago with some other history of thanksgiving. Thsi would explain where Rabbi Miller got his mistaken history from, but that wouldn’t make it correct.