Konstantin Tsiolkovsky was an early pioneer in the theory of space travel.
Konstantin Eduardovich Tsiolkovsky was born on September 17, 1857 and died on September 19, 1935. Konstantin Eduardovich Tsiolkovsky would have been 78 years old at the time of death or 154 years old...
Konstantin Tsiolkovsky was born on September 5, 1857.
Konstantin Eduardovich Tsiolkovsky was born on September 17, 1857.