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Trinity Test: "Atomic Age" starts
The first nuclear weapons test. "The Gadget" - an implosion-type plutonium device, exploded in Jornada del Muerto desert, New Mexico, the United States. -
Bombing of Hiroshima, Japan
First use of nuclear weapons. "Little Boy" uranium device, 13-18 kT yield -
Bombing of Nagasaki, Japan
A "Fat Man" plutonium implosion device, 21 kT yield, second use of nuclear weapons. -
NPT opens for signature
The Treaty on the Non-Proliferation of Nuclear Weapons (NPT) has three "pillars": non-proliferation, disarmament, and peaceful uses of nuclear energy. It is the most adhered-to international arms control agreement today. -
NPT enters into force
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Berlin Wall starts to come down
The fall of the Berlin Wall that separated East and West Germany is one of the signs of the end of the Cold War -
NPT extended indefinitely
NPT Extension DecisionsAt the Review and Extension Conference, Member States decide, without a vote, to extend the Treaty indefinitely as part of a package deal that also included strengthened review process, Principles and Objectives fpr Nuclear Nonproliferation and Disarmament, and the Resolution on the Middle East. -
Central Asian NWFZ signed
All CANWFZ overivewfive Central Asian states (Kazakhstan, Kyrgyzstan, Tadjikistan, Turkmenistan, Uzbekistan) sign the Central Asian Nuclear-Weapon-Free Zone Treaty in Semipalatinsk, at the former Soviet nuclear weapons test site. -
Central Asian NWFZ enters into force
The first nuclear-weapon-free zone entirely in the Northern Hemisphere -
8th NPT Rev Con oncludes
2010 NPT Rev Con Final DocumentMember States adopt by concensus "Conclusions and Recommendations," inluding 64 action items on disarmament, nonproliferation and peaceful uses, and a decision to hold a Conference on the Middle East in 2012.
