I think Tartaria existed for a thousand years AD.
Giants lived among humans when you consider the monumental buildings built with very large doors. Maybe they were descended from Nephilim? We know Tartaria existed by structures and intact buildings still standing.
We we learn about Tartaria soon I reckon.
The thousand years were stolen or hidden from us. Here's a curious video from Jon Levi about the missing millenium. The San Francisco train station seen at the end of video was erected in the year 800 [forgot last 2 digits].

J800 is not 1800. What's the J stand for? Jesus is the answer.

Another interesting question is 'where did the stock of people come from'?
The people who built those building were 'vaporized' or ? so the world rulers filled the cities with people dress in that garb.
There was a ritzy hotel of 500 rms 'Conspiracy R Us discussed that had no bathrooms - it was as if the occupants didn't use one. Utube deleted that vid unfortunately, along w/ a number of other good ones - the graphic frequency symbol on building that were desired to emit healing frequencies and some had the huge pipe organs. The world order made them in to churches. That vid was removed by utube too.