Encyclopedia

United Nations Secretaries-General
Secretary-GeneralNationalityDates in Office
Trygve Halvdan LieNorwegian1946–53
Dag HammarskjöldSwedish1953–61
U ThantBurmese1962–71
Kurt WaldheimAustrian1972–81
Javier Pérez de CuéllarPeruvian1982–91
Boutros Boutros-GhaliEgyptian1992–96
Kofi AnnanGhanaian1997–2006
Ban Ki-MoonSouth Korean2007–
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