Of course this was written back in 1957, in a very rare fit of honesty. It is no doubt "old light" by now. After all, quoting old literature is only OK when Brooklyn itself does it, when someone else does it, it's ridiculous. Well, anyway we all know how the "generation" teaching ended up, a resounding failure. We also know what a remarkable "faith" they had in Christ's "return" in 1874:
In the 70s the phrasing is a bit different, then it wasn't "indisputable facts" but "physical facts" which of course is just the same total nonsense:
Of course the present day teaching of the Watchtower rests upon exactly the same "indisputable facts" as the 1874 date did. In case any of you haven't noticed, the expression "indisputable facts" or "physical facts" is in Watchtower lingo really, "there isn't a single shred of evidence for this outrageous idea". Notice that in 1974 the "indisputable facts" from 1922 was all forgotten, now the Bible was "unmistakably" pinpointing the date 1914, not 1874. An excellent example of how the "new light" works. One old lie being replaced with a brand new lie.
So it doesn't take much fantasy to understand that some time in the first half of 2000 Brooklyn have to do something about their "faith" in 1914 too. As is evident in the quote from the 1922 Watchtower, it became increasingly embarrassing in the 1920s to have the "time of the end" start in 1799, so in spite of it being an "indisputable fact" it was moved up to 1914, just like the other "indisputable fact" 1874 was.
The main problem facing Brooklyn now is how to sell this idea without upsetting the insane idea of them being "chosen" in 1919. But of course by then they must have been able to "sift" out every single person in their ranks with a functioning brain, so why worry?