Tartary - an Empire hidden in history. It was bigger than Russia once...

"Tartary, a vast country in the northern parts of Asia, bounded by Siberia on the north and west: this is called Great Tartary. The Tartars who lie south of Muscovy and Siberia, are those of Astracan, Circassia, and Dagistan, situated north-west of the Caspian-sea; the Calmuc Tartars, who lie between Siberia and the Caspian-sea; the Usbec Tartars and Moguls, who lie north of Persia and India; and lastly, those of Tibet, who lie north-west of China." - Encyclopedia Britannica, Vol. III, Edinburgh, 1771, p. 887.

Now compare to the description given by Wikipedia, "Tartary (Latin: Tartaria) or Great Tartary (Latin: Tartaria Magna) was a name used from the Middle Ages until the twentieth century to designate the great tract of northern and central Asia stretching from the Caspian Sea and the Ural Mountains to the Pacific Ocean, settled mostly by Turko-Mongol peoples after the Mongol invasion and the subsequent Turkic migrations."

https://www.stolenhistory.org/threads/tartary-an-empire-hidden-in-history-it-was-bigger-than-russia-once.40/

http://www.abovetopsecret.com/forum/thread1067222/pg1