That this method of calculating is correctly used to bring us to A.D. 1914 from 607 B.C. is confirmed for us by the physical facts that have become manifest from that year 1914 on, in fulfillment of Matthew 24 and 25, Mark 13, Luke 21, and other prophecies concerning Christ's second presence, in the time of the end.
Of course you realize that if all the European diplomats could have reached some kind of agreement short of war in the summer of 1914 that there would be no WT religion, we all would have had more normal lives and this discussion board would be about gardening or wine-tasting.