China's five-year plans derive from the Soviet-style model of central planning and function as multi-year economic blueprints.
October 24, 2025
high
historical
The five-year planning approach traces its origins to the centralized planning systems used by the Soviet Union.
President George H.W. Bush imposed a moratorium on U.S. nuclear weapons testing in 1992 following the dissolution of the Soviet Union.
January 01, 1992
high
temporal
Policy change that ended U.S. nuclear testing in the early 1990s.
The United States and the Soviet Union developed nuclear-powered missile concepts during the Cold War but eventually shelved those projects because they were considered too hazardous.
December 26, 1991
high
temporal
Historical development and cancellation of nuclear-powered missile programs.
Russia (including tests carried out by the then-Soviet Union) has not conducted a nuclear weapons test since 1990.
January 01, 1990
high
temporal
Historical baseline for Russian/Soviet nuclear testing activity.
The Soviet Union (Russia) carried out its last nuclear test in 1990.
January 01, 1990
high
temporal
Year of the final nuclear test by the Soviet Union/Russia.
The Holodomor was a man-made famine in Soviet Ukraine in 1932â1933 associated with policies of Joseph Stalin that resulted in millions of deaths.
January 01, 1932
high
temporal
Historical context referenced when discussing Ukrainian memory and national narrative.
During the Cold War, the United States and the Soviet Union researched nuclear-powered missiles but eventually shelved those projects because they were judged to be too hazardous.
high
historical
Cold War-era weapons research and program cancellations related to safety and environmental concerns.