

3 It may also rightfully claim to be the most su. 1The Vienna Convention on Diplomatic Relations was adopted on 14 April 1961 by the United Nations Conference on Diplomatic Intercourse and Immunities held at the Neue Hofburg in Vienna, Austria, from 2 March do 14 April 1961.

2 It represented the first significant codification of any international instrument since the United Nations was established.

The Conference on the Law of Treaties held at Vienna in 19, like the other important United Nations conferences on the codification of international law (Geneva Conferences on the Law of the Sea of 19, Vienna Conference on Diplomatic Intercourse and Immunities of 1961 and Vienna Conference on Consular Relations of 1963), formulated and adopted a Convention on the basis of a draft which was the collective work of the International Law Commission (ILC) of the United Nations, carried out under the guidance of a Special Rapporteur.We have thus been witnessing since 1958 the interesting process of the reduction into treaty law of a substantial part of the customary international law of peace if this period is compared with the centuries that went before, the transformation of unwritten rules into written law which has thus taken place appears remarkably fast. The successful adoption of the Vienna Convention on Diplomatic Relations 1 is hailed as the ‘landmark of the highest significance in the codification of international law’.
