(April 12, 1839 - November 1, 1888)
Nikolai Mikhaylovich Przhevalsky, was a Russian geographer of Polish background and explorer of Central and Eastern Asia. Although he never reached his final goal, Lhasa in Tibet, he travelled through regions unknown to the west, such as northern Tibet, modern Qinghai and Dzungaria. He significantly contributed to European knowledge on Central Asia and was the first known European to describe the only extant species of wild horse, which is named after him.
Fabian Gottlieb von Bellingshausen
(September 20, 1778 - January 25, 1852)
Fabian Gottlieb Thaddeus von Bellingshausen was an officer in the Imperial Russian Navy, cartographer and explorer, who ultimately rose to the rank of Admiral. He was a notable participant of the first Russian circumnavigation and subsequently a leader of another circumnavigation expedition, which discovered the continent of Antarctica.