Just saw this when I was searching Atlantis, and it reminds me of a AH setting made on Alternate History .com. A setting that I totally loved and have fond memories of reading. - Oh, by the way, this is Pendragon on that site.
The issue is, the Azores were uninhabited before the Portuguese arrived and settled them, so there are no pure "Azoreans". If we wanted to look for Atlanteans, we would have to look for their genetic markers in other peoples, but we have no idea what sets "Atlanteans" apart genetically so we don't know what to look for.
well, i think it's a bit too early to say that. first of all, historians can't even agree on the actual facts of atlantis, like if it existed 3000 years ago or 9000 years ago. that's a differrence of 6000 years, if you suddenly forgot how to count. also, most importantly, whether you talk about 3000 years ago or 9000 years ago, during that time, there no signs by the road saying: "welcome to atlantis", so even if scientists find an ancient city that does happen to have sunk beneath the waves, they still have no idea which city it is. and lastly, wouldn't it be way more fun if atlantis would never be discovered? wouldn't it be way cooler to think that it's this beautiful alien place of wonder than the dull depressing reality that it's probably just some stone columns on the seabed?
sorry about that whole thing. i was in the mood for writing something big.