NASA research of Earth-Moon mechanics by astrophysicist Robert Newton leads mathematicians of MSU to a breakthrough in the chronology of civilization and geography of North America. USA Has Issues With (British) Maps of 18th Century analyses in detail the maps of 1771 edition of Encyclopaedia Britannica and concludes that north-western part of the USA and Canada was built on remains of Great Russian Muscovite Tartary, which according to Britannica of 1771 was the biggest state in the world with capital in Tobolsk. The war of new Russian Empire of 1773-1775 with Muscovite Tartary was covered up by Catherine II as a raid against peasant rebellion headed by "Pougatchev" ("scare" in Russian) was actually the final blow to Great Tartary. After the war of 1773-1775 the new Russian Empire has taken over Urals, Western and Eastern Siberia, Alaska, north-western America down to San Francisco which it lost. USA bought NWA, but not paid the bill.