Q:
Why was Tartaria erased from the record books?

A:
It was erased from the records book to rewrite the winners history, which was made by todays ruling Elite. That was the main reason, as we are simply now living on Tartarias ruins and all that old cathedrals, which are told to be european arhitecture etc, were built in reality before Europes Civilization and made by Tartarians (Siberian Russians), which have existed not only in central Asia, but also in Northern and South America and partially in Africa. Though, this elite still couldn’t erase it completely as
the “Strait of Tartary” still exists as a strait between eastern Russia and the Sakhalin Islands:
That is what happened back 200 years ago, when Tartaria (Siberian Russian Empire) has fallen, when Romanovs with Napoleon were constantly attacking Tartaria, which had it’s capital in Siberia and that’s why Siberia was completely bombed by a nuclear weapon and became dessert like after that in 1820’s. Only after that period, the freemasonic (European) occupants' dynasty Romanovs moved towards the eastern part of Russia.
The Strait of Tartary still exists, if you look at the map. It is located between Russian Sakhalin Islands and the Japanese Sea at the eastern side of Russia:

The second reason for Tartarias erasing was the elimination of the competition in ruling the world.
That is also the main reason why the West constantly attacks Russia, as the remained biggest for that western elite, to establish their world wide order. Russia can challenge them.