What the pie-and-jam primitive, who alleges she's traced one line clear back to B.C., doesn't understand is that all antecedents are questionable.
It wasn't until 1890 that states began registering births and deaths, and even that paper trail isn't infallible; there's been plenty of cases where paternity (and even maternity, although not nearly as much) was misgiven, either unintentionally or intentionally.
Before then, in Europe and North America, local churches registered births and deaths, and those were only partial.....and subject to misrepresentation, again either innocent or malicious.
Millions, even billions, have been born, lived, and died, without anyone but God knowing of their existence.
The first time I visited St. Margaret's Church next to Westminster Abbey, I saw a plaque reminding visitors to not trod on the lawn, as it was hallowed ground, where the bodies of thousands of victims of the Black Death 1347-1349 had been dumped. Probably some of them were my own ancestors, their own lives unrecorded.
It's just an amusing diversion, not to be taken seriously.
The pie-and-jam primitive, in her addled old age, seems to think that her ancestry confirms something special about she herself, when in fact it doesn't make her any more "special" than the least person who ever inhabited this time and place. It's not important who, and what, one's ancestors were; it's paramountly important who, and what, one is.