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| caption =Participation in the Nuclear Non-Proliferation Treaty {{legend|#000080|Recognized nuclear weapon state [[Vienna Convention on the Law of Treaties|acceders]]}}

|image = Vienna Convention on Road Traffic.svg |caption = Participation in the Vienna Convention on Road Traffic

|image = Vienna Convention on Road Signs and Signals.svg |location_signed = Vienna

|name = Vienna Convention on the Law of Treaties |image =Vienna Convention on the Law of Treaties parties.svg

|location_signed = [[Vienna]], Austria ...]s, [[benzodiazepine]]s, and [[Psychedelic drug|psychedelics]] signed in [[Vienna]], [[Austria]] on 21 February 1971. The [[Single Convention on Narcotic Dru

...es such as the [[Khazar Correspondence]], according to which at some point in the 8th–9th centuries, the ruling elite of the Khazars was said by [[Juda ...ate it.<ref name=rubin /> Despite skepticism, he reformulated the concept in 2016 by developing a novel method of genetic analysis that uses the fringe

|caption=Brezhnev in [[East Berlin]] in 1967 ...beginning of [[Era of Stagnation|an era of economic and social stagnation in the Soviet Union]].

...rsal''' was an ambitious project to divert the flow of the Northern rivers in the [[Soviet Union]], which "uselessly" drain into the [[Arctic Ocean]], so ...the 1960s through the early 1980s. The controversial project was abandoned in 1986, primarily for environmental reasons, without much actual construction