So doing the math, 607 BC plus 2,520 days comes to the year 1914 .
Please don't make me do math at this time of the morning!
Actually, I think Rev1212's post is as much evidence as we're going to get. I doubt that he can find a scripture that supportsthis leap of scholarship: Oh, no doubt there were some "spirits" involved! So that is the starting point, which was 607 BC, when Jerusalem fell to Babylon. The year 1914, which is the year that the Gentile Times (aka Appointed Times of the Nations) ended, was determined though a study of the Bible along with no doubt some holy spirit given to the brothers that were able to discern this information.