Check out some of the news coverage of the time.
(I encourage you to click on any article of interest to read the entire piece, especially since I truncated some of the longer ones to save space on this page.)
When did the term start to be used? Here are some of the earliest articles I found.
Ethnic-Greek Orthodox switched to the Gregorian (or technically, Revised Julian) calendar in 1924, so from then on "Greek Christmas" was not celebrated by Greeks, mainly just by Eastern Christian Slavs. But in some places, the term "Russian Christmas" was more common.
"Greek Christmas" greatly affected production in the coal mines in some towns of heavy Rusyn concentration, and school attendance dropped significantly. In at least one city, they ran special bus schedules to transport our people to and from services.
This second Christmas celebration was an opportunity for local businesses to invite customers for special holiday items or to keep the party going.
As more and more Eastern Christian jurisdictions with Carpatho-Rusyn members in the U.S. began to adopt the Gregorian calendar (in many cases decided by a vote taken parish by parish), the phenomenon started to fade in importance to the greater community. These are some of the last times the concept made the newspaper in terms of acknowledging local celebrations of Christmas on January 7.
I believe the shared tradition (and traditions) of our "Greek Christmas" engendered a unity of our people that was greater than some of the issues that divided us like ethnonational orientation, regional origin, and religious confession.
Today, as our parish communities have shrunk, moved to the suburbs, or generally switched to the Gregorian Calendar, "Greek Christmas" is written about only as a curiosity, is among our people now mostly a memory, though a fond one for most Carpatho-Rusyn Americans, one that even the younger generations who never experienced it personally are still at least aware of. To those few who still had your Christmas last weekend, from your January 6 Christmas Eve Holy Supper to your celebration of the big day on January 7, know that in many ways our hearts and minds are with you.
Christos raždajetsja! Slavite Jeho! Christ is born! Glorify Him!
Original material is © by the author, Richard D. Custer; all rights reserved.