The Space Race spawned pioneering efforts to launch artificial satellites, uncrewed space probes of the Moon, Venus, and Mars, and human spaceflight in low Earth orbit and to the Moon.
Marianna Hermann Falk was 36 years old when Tsar Nicholas II of Russia was forced to abdicate in the February Revolution, ending three centuries of Romanov rule.
2021 ESC Guidelines for the diagnosis and treatment of acute and chronic heart failure
Nicholas II or Nikolai II, known as Saint Nicholas in the Russian Orthodox Church, was the last Emperor of Russia, ruling from 1 November 1894 until his forced abdication on 15 March 1917.
It had its origins in the missile-based nuclear arms race between the two nations that occurred following World War II, aided by captured German missile technology and personnel from the Aggregat program.