1 jun 1990 ano - 1990
Descrição:
June 1 - President Bush and President Gorbachev sign new protocols to the Threshold Test Ban treaty.
September 25 - U.S. ratifies the Threshold Test Ban Treaty.
September 27 - The last Pershing II missile is removed from West Germany
December 11 - The Threshold Test Ban Treaty enters into force.
Adicionado na linha do tempo:
atomic and nuclear physics
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