events
Cold War: The United States, the United Kingdom, and the Soviet Union sign the Partial Nuclear Test Ban Treaty.
Related Wikipedia articles
Cold War
1947–1991 geopolitical rivalry between US and USSR
The Cold War was a period of global geopolitical rivalry between the United States (US) and the Soviet Union (USSR) and their respective allies, the capitalist Western Bloc and communist Eastern Bloc, which began in the aftermath of the Second World War and ended with the…Source: Wikipedia (CC BY-SA)
Partial Nuclear Test Ban Treaty
1963 international agreement
The Partial Test Ban Treaty (PTBT), formally known as the 1963 Treaty Banning Nuclear Weapon Tests in the Atmosphere, in Outer Space and Under Water, prohibited all test detonations of nuclear weapons except for those conducted underground. It is also abbreviated as the Limited…Source: Wikipedia (CC BY-SA)