Konstantin Tsiolkovsky
FollowBorn 17 September 1857 in Izhevskoye, Ryazan Governorate, Russian Empire [now Ryazan Oblast, Russia]
Died 19 September 1935 (aged 78)
Born 17 September 1857 in Izhevskoye, Ryazan Governorate, Russian Empire [now Ryazan Oblast, Russia]
Died 19 September 1935 (aged 78)