fettered the movements of the olger, yes, and when it became known that princes vladimir serpukhov and oleg ryazan going to send troops to the aid of prince moscow, the olgel was forced to completely retreat from the moscow principality. on november 29, 1870, the first expedition of nikolai przhevalsky to central asia began, accompanied by another russian traveler. mikhail polltsov, in 3 years the researchers covered almost 12,000 km from the city kyakhta in buryatia through beijing to hard-to-reach areas of china, tibet and mongolia proved that the yellow yellow river has no branching. as it was thought, before przhevalsky wrote a book following the results, mongolia and the tangut country, in total, he made four trips to areas of central asia previously unknown to europeans, discovered many geographical objects, including seven large lakes , several new species of animals, including the famous dwelling horse, collected rich zoological collection, the scientist died during the fifth expedition and was buried on the shore of the lake, issyk-kul is named after zhizhalsky, the city , the ridge, the