All this kerfuffle over the year 607 threw up an interesting side issue for me.
Some posts relate to the WTS use of Chronology derived from CTRussell's "Divine Plan of the Ages" and "Studies in the Scriptures". Within those pages are found some explanations of how the years 1874 and, later, 1914 were 'decided'
It seems there was a remeasuring of a particular tunnel within the Great Pyramid of Gizeh which was, subsequently, found to be 40 inches longer. Applying a rule of Russell's (I suppose) 1 inch equals a year then 1874 became 1914! Simple.....
What if Russel was European? Does that mean 1 year = 25.4mm? Or would we have have change the chronology by a factor of 25.4 years? I'm so amazed that all those years ago the Egyptians were tricked into tacitly throwing away their cubits and then to be forced into using Inches!
I apologize for not fully relating all the facts but it's all here on JWN if you want to look yourself. I also found someone had the same thought as me 4 years ago! Worth resurrecting though I think.