I could not find tombstones earlier than i1625 and that would consequently mean, it's not just 1000 years that they made up but more than 5600 years (if we take the 6000 years of human history as granted)! Ancestry profiles don't show earlier timelines than 1700s either, so I challenge you to find the oldest gravestone in your local cemetery!
Read next
Fake History of Mexico: Chichén Itzá
I Visited Chichén Itzá in Mexico and Found Out Some Secrets... Puzzle stones, stones that have different shapes and sizes,
Tartaria & Gulliver: Are They Hiding a Twin Earth?
What if the backup Earth mentioned in The Hitchikers' Guide to The Galaxy has something to do with Tartaria