Private User I wonder if you actually know that the year you mention is an estimation made by Genis software program, and what you see and become upset over is in fact a result of a coded software error, it doesn't know, it does certainly not understand, and it have been programmed by a type of same people, more or less brainless.
Actually these numbers were put in by humans at varying times, using varying guesstimate methods, and the (hman driven) merge process for the hundreds of copies that result in the current profiles have not been consistent in what dates have been picked.
So it's a human error. But there are no sources with dates in them, so it's just a matter of which guess you want to believe; nobody's cared enough to apply a consistent set of estimates.