Headquarters of the United Nations However, the UN did reject an unusual "model playground" proposal for that site, instead choosing to construct a play area similar to others found around New York City. The first 450 UN employees started working at the Secretariat Building on August 22, 1950. The United Nations officially moved into the Secretariat Building on January 8, 1951, by which time 3,300 employees occupied the building. At the time, much of the Secretariat Building was still unfinished, and the bulk of the UN's operations still remained at Lake Success. A centralized phone-communications system, was built to facilitate communications within the complex. The
Brazil and the United Nations United Nations Educational, Scientific and Cultural Organization (UNESCO) headquarters in Paris, the Permanent Delegation of Brazil is headed by Ambassador Marcia Donner Abreu. Brazil joined UNESCO in 1946, and has been a member of its executive board several times, most recently 2007–09. Brazil and the United Nations Federative Republic of Brazil is a founding member of the United Nations and participates in all of its specialized agencies. Brazil is among the twenty top contributors to United Nations peacekeeping operations, and has participated in peacekeeping efforts in the Middle East, the former Belgian Congo, Cyprus, Mozambique, Angola, and more recently East