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The Soviet Union successfully conducts a long-range test flight of the R-7 Semyorka, the first intercontinental ballistic missile.
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Soviet Union
Country in Eurasia (1922–1991)
The Union of Soviet Socialist Republics (USSR), commonly known as the Soviet Union, was a transcontinental country that spanned much of Eurasia from 1922 until it dissolved in 1991. During its existence, it was the largest country by area, extending across eleven time zones and…Source: Wikipedia (CC BY-SA)
R-7 Semyorka
First Intercontinental ballistic missile
The R-7 Semyorka was a Soviet missile developed during the Cold War, and the world's first intercontinental ballistic missile. The R-7 made 28 launches between 1957 and 1961. A derivative, the R-7A, was operational from 1960 to 1968. To the West it was unknown until its launch.…Source: Wikipedia (CC BY-SA)
Intercontinental ballistic missile
Ballistic missile with a range of more than 5,500 kilometres
An intercontinental ballistic missile (ICBM) is a ballistic missile with a range greater than 5,500 kilometres (3,400 mi), primarily designed for nuclear weapons delivery. Conventional, chemical, and biological weapons can also be delivered with varying effectiveness but have…Source: Wikipedia (CC BY-SA)
August 21
Day of the year
August 21 is the 233rd day of the year in the Gregorian calendar; 132 days remain until the end of the year.Source: Wikipedia (CC BY-SA)