I was paging through my copy of the classic ]Star Trek Spaceflight Chronology
when I found, in the space for 2109, a description of the Battle of Cheron wherein Federation squadrons crushingly defeated the Romulans.
This was noteworthy to me since the first mention of the Battle of Cheron on television was made by Admiral Jarok
in the TNG episode "The Defector"
"The humiliating defeat at the Battle of Cheron has not been forgotten. The new leaders have vowed to discard the treaty and claim the Neutral Zone. Nelvana Three is only the first step."
That episode aired a decade after the Chronology
's publication. Though the chronology of the publication of the Goldsteins and Sternbach has long since been superseded, the idea of the Battle of Cheron as a crushing Romulan defeat in the war against Earth made it into the televised canon. (Ronald Moore, author of "The Defector", was plausibly familiar with the Chronology
long before he became a writer on TNG.)
Why am I posting it here? Well, looking at Memory Beta and doing Googling elsewhere, the origins of the Battle of Cheron in the Chronology
don't seem to be recognized anywhere.