Bélyegkatalógus › Sorozat (Téma: Konferenciák)

"chemindo '91" Chemistry Congress, Surabaya (1)"Informatica 84", Rio de Janeiro (1)"Mongol" különböző feliratok (5)"The 3 of Africa" Conference (2)"Victorious February", 15th Anniversary+Trade Unions Congres (3)1. Emlőstani Nemzetközi Kongresszus (ITC) (5)1. Jogi Kongresszus (1)10 Years KSZE Conference (16)100 éves az Egyetemes Postaegyesület (7)100 Years of Democracy (1)100. Anniversary Of The Marxschen Program Criticism And The (9)100th Anniversary of Rotary International (1)100th Anniversary of The Japan Academy Prize (1)100th Annual Meeting of Japanese Dermatological Association (6)10th Anniv. of CCM Party and 20 years declaration of Arusha (2)10th Anniv. of European Security and Co-operation Conference (2)10th anniv. of the UN Conference on Environment in Stockholm (1)10th Anniversary of Arab Postal Union's Permanent Office (1)10th Anniversary of Bandung Conference (2)10th Anniversary of KAMART (19)10th Anniversary of SADCC (2)10th Anniversary of the 2nd Meeting of the "AVNOJ" (3)10th Annual Congress of Iranian Dental Association (2)10th Annual General Meeting of RASCOM (4)10th arab scout meeting, Mosul (1)10th Conference of ARCO (1)10th conference of the Ministers of communications of the co (1)10th Congress of Americas and Spain Post Union (5)10th Congress of the League of Communists of Yugoslavia (6)10th Economic Cooperation Organisation Summit, Tehran (1)10th European Congress of Rheumatologists, Moscow (2)10th F.A.O Conference For the Near East (1)10th Inter-American Cancer Cong. (4)10th International Congress for Sister Cities, Casablanca (2)10th International Congress of Pediatrics (4)10th Islamic Summit Conferense (6)10th Union Trade World Congress in Havanna (2)10th World Conference of Grand Lodges (2)10th World Trade Union Congress, Havana (6)11th Arab Summit Conference, Jordan (6)11th ASEAN Summit, Kuala Lumpur (3)11th Asian Pacific Postal Union Congress (16)11th Commonwealth Forestry Conference (5)11th Conference on AIDS and STDs in Africa, Lusaka (2)11th Congress of the Bulgarian Communist Party (4)11th Congress of the League of Communists of Yugoslavia (6)11th Economic Cooperation Organisation (3)11th FAO Regional Conference (3)11th International Audiology Congress, Budapest (2)11th International Botanical Congress, Seattle. (5)11th Meeting of Organization of Eastern Caribbean States (8)11th Pan-American Railroad Congress (2)11th Plenary Conference of Korean Worker's Party (2025) (6)11th World Federation of Rose Societies Congress (3)11th World Forestry Congress (1)11th World Summit of the Francophonie, Bucharest (4)12th Arab Summit Conference, Fez (1)12th Conf. of the Arab Medical Union (2)12th Conf. of the Asian Anticommunist League (2)12th Conference of Defense Ministers of the Americas (4)12th Congress of Iateinamerikanischen Tourism (COTAL) (1)12th Cuban Philatelic Federation Congress (1)12th Inter-American Conference on Hoof-and-Mouth Disease (6)12th International Suffragist Congress, Istanbul (14)12th International Transport and Communication Forum (2021) (6)12th Panamerican Health Conference, Caracas (5)12th UPU Congress at Paris (3)13. Komszomol kongresszus (3)13. szovjet szakszervezeti kongresszus (3)136th Assembly of the Inter-Parliamentary Union, Dhaka (3)13th Arab Summit Conference (3)13th Conference of Asian-Pacific Labour Ministers - Tehran (1)13th Congress of Postal Union of the Americas and Spain (2)13th Congress of the International Astronomical Union (1)13th Congress of the League of Communists of Yugoslavia (4)13th Congress on Amelioration (1)13th International Congress of Christian Archaeology (3)13th International Congress on Fertility and Sterility (1)13th International Road Transport Union Congress, Estoril (1)13th Shanghai Cooperation Organization (SCO) (8)13th U.P.U. Congress, Brussels (25)14. Komszomol kongresszus (3)14. szovjet szakszervezeti kongresszus (1)140th Anniversary of Serbian-American Diplomatic Relations (1)14th Asian-Pacific Dental Congress (1)14th conf. of the Pacific Travel Association (2)14th Conference of the Arab Chambers (4)14th Congress of IABSE, New Delhi (3)14th Congress of the League of Communists of Yugoslavia (4)14th Francophonie Summit, Kinhassa 2012 (2)14th International Cancer Congress (2)14th UN Conference on Crime Prevention, Kyoto (8)14th World Boy Scout Jamboree (2)14th World Highways and Bridges Congress (1)14th World Orchid Conference, Glasgow (4)15. Year Congress of Black Sea Economic Cooperation (1)150th Anniv.of Anglican Diocese of N.E. Caribbean & Aruba (1)150th Birthday of Abraham Lincoln (1)15th African Summit Conference (3)15th Anniv of European Security and Co-operation Conference (2)15th Anniversary of Independence (II). Democracy (2)15th anniversary of Puchong Conference (2)15th Commonwealth Parliamentary Association Conference (3)15th Conference of the South Pacific Commission (7)15th General Assembly of Organization of Arab Towns (13)15th General Assembly of the United Nations, New York City (3)15th International Exhibition and Forum, Minsk (2)15th International Historical Architecture Congress (4)15th International Red Cross Congress - Tokyo (4)15th International Theatre Institution Congress (2)15th Session of the Comecon (1)15th South Pacific Forum (2)16th Congress - General Association of Engineers in Romania (18)16th International Law Conference (8)16th Women's International Council Meeting (2)173th Rotary International District Conference, Casablanca (2)175th Anniversary of the Congress of Vienna (1815) (4)17th African Summit Conf., Freetown (2)17th Annual Conference of Pacific Area Travel Association (2)17th Asian Pacific Dental Congress, Manila (2)17th Francophone Summit, Yerevan (2)17th Social Welfare Conference, Nairobi (4)18. Nemzetközi Madártani Kongresszus (6)18th Anniversary of Revolution (1)18th Conference of the IAP, Moscow (1)18th Francophone Summit, Djerba (2022) (2)18th International Conference of Scouting (6)18th Session of U.N. Commission on Status of Women, Tehran (2)19. lengyel Filatéliai Kongresszus, Lubin (2)195th Annual Leeward Island Methodist Church District Conf. (8)19th Congress of the Int. Council of nurses, Seoul (1)19th CPC National Congress (5)19th International Botanical Congress in Shenzhen (PRC) (8)19th International Chamber of Commerce Congress (1)19th International Entomology Congress, Peking (4)19th International Horticultural Congress in Warsaw (11)19th Pan-American Railways Conference (3)19th Universal Postal Union Congress, Hamburg (12)19th World Congress SICOT (1)1st All-Union Congress of Architects (2)1st anniversary of Casablanca conference (2)1st Arab Conference of Moslem Wakf Ministers (2)1st Arab Postal Congress (6)1st Conference of General Convention on Climate, Berlin (2)1st conference of the Arab veterinary Union (2)1st Congress Hispano-Luso-American Economic Geology (4)1st Congress of Burmese Socialist Program Party (1)1st Congress of tropical medicine (1)1st Congress of Workers' Councils (2)1st European Catholic Doctors' Congress, Valletta (3)1st Global Forum on Youth Policies (3)1st Int. Conf. on smoking and health (2)1st International Air Mail Conference, Hague (3)1st International Day for Equal and Inclusive Education 2021 (1)1st Intl. Cong. for establishing the UPU, 90th anniv. (2)1st Intl. Dates Conf., Tripoli, (1)1st National Congress of Czechoslovak Red Cross (2)1st National Eucharistic Congress, Salvador (Bahia) (1)1st Pan-American Congress of Pharmacy, Havana, Dec. 1948 (2)1st Pan-American Postal Congress, Buenos Aires (5)1st Session of National Congress (2)1st Summit of the Non-Aligned Movement, Belgrade (5)1st UN Conference of Small Island Developing States (4)1st UN Conference on Human Environment (1)1st UN Security Council Meeteing (3)2. Kommunista Pártkongresszus (3)20. Komszomol kongresszus (3)20. Nemzetközi Tiszta és Alkalmazott Kémiai Kongresszus (1)20. UPU kongresszus (12)2000 Icograde Millennium Congress (1)2005 APEC Economic Leaders' Meeting (2)2012 Annual Meetings IMF / World Bank Group (2)2018 Revalidation Overprints on Previous Issues (1)2019 Revalidation Overprints on Previous Issues (1)2021 ASEAN Summit, Bandar Seri Begawan (5)2023 Francophone Youth & Sport Minister Conference (9)2023 G7 Summit, Hiroshima (6)2024 World Congress on Information and Technology, Yerevan (2)20th Anniversary of First TIBO Forum (2)20th Anniversary of KAMART (20)20th Anniversary of OSZSZ (2)20th Belarusian Energy and Ecology Congress (2)20th Commonwealth Parliament Conference (1)20th International Economic Forum, 2016, St. Petersburg (2)20th ‭Pacific Travel Association (PATA) conference, Manila (3)20th Pan American Railway Congress, Havana (1)20th Universal Postal Union Congress, Washington DC (11)20th World Congress for Education, Hygiene abd Recreation (1)20th World Orchid Conference (1)20th World Road Congress, Montreal. Bridges (1)21st International Red Cross Conference, Istanbul (2)21st Meeting of the Caribbean Commission, Aruba (3)21st Universal Postal Congress, Seoul 1993 (4)22nd Conference of the Association of American Air Forces (1)22nd International Turkish Folklore Congress, Bursa (5)22nd UPU Congress (4)22nd UPU Congress & China ’99 World Philatelic Exhibition (5)23. bizantiológiai világkongresszus Belgrádban, 2016-ban (8)23rd Communist Party Congress (3)23rd Congress of International Organisation of Supreme Audit (2)23rd Congress of the Universal Postal Union, Bucharest (I) (3)23rd Congress of the Universal Postal Union, Bucharest (II) (1)23rd General Assembly of Interpol (2)23rd Post-Conference of ASEAN Countries (1)24th Boy Scout World Conference (11)24th Intl. Red Cross Conf., Manila (2)24th World Congress of the Junior Chamber of Commerce (3)24th World Scout Conference, Addis Ababa, Nairobi 1973 (1)24th World Scout Conference, Nairobi (4)25 years Iraqi Red Crescent (1)25. ukrán kommunista pártkongresszus (1)250th Anniversary of Moravian Church in Antigua (6)25th Anniv. Coronation of Queen Elizabeth II (4)25th anniv. of the Conference of Sofar, Lebanon (2)25th Anniv. of the Conference on Interaction in Asia (CICA) (3)25th Anniversary of Association of Iranian Dentists (1)25th Anniversary of First TIBO Forum (2)25th Anniversary of Interparliamentary Assembly on Orthodoxy (2)25th anniversary of Lausanne Treaty (4)25th Anniversary of Reign of Elizabeth II (1)25th anniversary of the Communist Party Conferenceat Tsunyi (1)25th Anniversary of the CSCE, Helsinki (3)25th Anniversary of the Signing of the Potsdam Agreement (9)25th Anniversary of World Peace Congress (1)25th Asean Ministerial Meeting (8)25th Commonwealth Parliamentary Conference (4)25th Commonwealth Parliamentary Conference, Wellington (3)25th Conference of Iranian Mathematicians (1)25th Zionist Congress in Jerusalem (3)26th Communist Party (PCUS) Congress (2)26th Communist Party Congress (4)26th Congress of Military Medicine and Pharmacy (1)26th Congress of the International Astronautical Federation (5)26th Congress of USSR's Communist Party (1)26th International Ski Federation Congress (2)26th Meeting of the Coordination Council of Attorneys Genera (4)27th Communist Party Congress (4)27th UPU Congress, Abidjan (Series II) (2021) (6)27th UPU Congress, Abidjan 2020 (Series I) (1)28th Arab League Summit, Amman (5)28th Congress of Southern Africa Philatelic Federation (1)28th Int. Congress of Physiological Sciences, Budapest (2)28th Parliament Conf (4)28th South Pacific Conference (1)28th World Scout Conference in Dakar (1)29th Commonwealth Parlimentary Conference (3)29th International Ski Federation Congress (2)2nd Africa-India Forum Summit, Addia Ababa, Ethiopia (1)2nd Africa-India Forum Summit, Addis Ababa, Ethiopia (2)2nd Afro Asian Conference (2)2nd All-Union Philatelic Society Congress, Moscow (1)2nd Arab Summit Conference (5)2nd Caribbean Conference, Trujillo City (1)2nd Commonwealth Conference of Postal Administrations (4)2nd Conference of Rioplatenses Philately (1)2nd Congress of Czech. Association for Political knowledge (1)2nd FAO date conference, Baghdad (3)2nd Intern. Architecture Congress (1)2nd International Conference on Works of José Martí, Havana (1)2nd International Congress Of Somali Studies (2)2nd International PosTech Conference (2008) (2)2nd Islamic Congress (1)2nd Islamic Summit Pakistan (3)2nd Self-Governance Congress of Yugoslavia (4)2nd Summit of African, Caribbeand and Pacific heads of state (2)2nd Summit of Heads of State and Government of OPEC (22)2nd TELSOM-ATRC Leaders Retreat (1)2nd Turkish Historical Congress, Istanbul (4)2nd UN African Regional Cartography Conference (4)2nd UN Conference on Human Settlements (5)2nd UN Disarmament Conference (3)2nd UN-oil-conference (1)2nd Vatican Ecumenical Council (23)2nd Vatican Ecumenical Council Reopening (14)2nd World Youth Council Meeting, 1950 (2)2nd Yaoundé Medical Conference (1)3. Assembly of the Presidents of Central America (10)3. Caribbean Aviation Conference (1)3. Nemzetközi Karakül Juh Tenyésztési szimpózium (1)3. össz-szövetségi béke konferencia (1)3. össz-szövetségi Filatéliai Társaság kongresszus, Moszkva (2)3. Világ Diákkongresszus (5)30 éve halt meg Lenin (4)30 Years of International Committee for Emigration (2)30th Anniv. of the Conference on Interaction in Asia (CICA) (2)30th Anniversary of the CSCE, Helsinki (2)30th anniversary of UNCTAD (2)31st ASE Planetary Congress 2018, Minsk (2)31st Session of the GCC Supreme Council - Abu Dhabi (1)34th International Astronautical Congress, Budapest (2)35th anniversary of the Yennan Forum (2)35th Association of Space Explorers Congress (2024) (3)35th Commonwealth Parliamentary Conference (2)35th International Eucharistic Congress, Barcelona (2)36th International Geological Congress, Delhi (2)36th SADC Summit, Mbabane (5)38. eszperantó kongresszus Zágrábban (2)3rd Annual Caribbean Media Conference, Georgetown (1)3rd Arab Journalists Congress (2)3rd Asia-Europe Meeting (1)3rd Bulgarian Culture Congress (1)3rd Carribean Conference (4)3rd Communist Party Congress (2)3rd Congress of Cooperative Farms (1)3rd Congress of Lebanese World Union (4)3rd Congress of Mongolian Writers (2)3rd Congress of PAICV (5)3rd Congress of Solidarity with people of Aden (2)3rd Congress of the Arab Postal Union, Baghdad (3)3rd Congress of the Polish Philatelic Association (4)3rd Congress of Turkish Cooperatives, Istanbul (2)3rd Eucharistic Congress,Quito (3)3rd Intl. Conference on the Impact of Viral Diseases (3)3rd Iranian dental congress (1)3rd Lions District Convention (2)3rd National Congress for Literature and Art (2)3rd National Congress of Fisheries (2)3rd Pan American Congress (2)3rd Transnistrian Investment Forum - Tiraspol (2)3rd U.N. Conference on Trade and Development (UNCTAD III) (4)3rd UN World Conference Against Racism, Durban (12)3rd UNI Global Union World Congress - Nagasaki (5)3rd World Tobacco Congress, Salisbury (4)3rd. Arab Summit Conference CASABLANCA 1965 (5)4. nemzetközi Finn-Ugor Kongresszus (2)4. Szakszervezeti Világkongresszus, Lipcse (2)4. Szakszervezeti Világkongresszus, Lipcse (4)40 éves az ENSZ (1)40th Anniv. Association of South East Asian Nations (ASEAN) (11)40th Anniversary of Bandung Conference (2)40th Anniversary of Signing of the Helsinki Final Act (2)40th Anniversary of the Danube River Conference of 1948 (4)40th Anniversary of the Speech of Tangier (1)40th International Eucharistic Congress (3)40th Interparliamentary Conf.,Istanbul (3)41st International Eucharistic Congress (3)41st World Scout Conference, Baku (4)42nd International Eucharistic Congress (4)42nd Skal Club World Congress (4)43rd General Assembly of Atlantic Association (5)43rd International Eucharistic Congress (4)43rd Pacific Islands Forum (34)44th International Eucharistic Congress (4)44th Intl. Eucharistic Congress, Seoul (1)45th International Eucharistic Congress in Seville (4)46th International Eucharistic Congress (4)47th International Eucharistic Congress (1)48th Inter-Parliamentary Conference in Warsaw (2)49th Eucharistic World Congress, Quebec (2)49th General Assembly Session of INTERPOL (Intl. Police Orga (4)4th African Conference of Scouting in Abidjan (5)4th All-China Philatelic Federation Congress (1)4th All-Union Society of Philatelists Congress, Moscow (1)4th American Regional Conference of Labour (13)4th Arab Jurists Congress (1)4th Collective Farm Conference (2)4th Congress of UNI (Global Union Post & Logistics) (2)4th European Sport Conference, Berchtesgaden (2)4th General Conference of the Latin American Episcopate (1)4th Indo-Pacific Fisheries Council Meeting, Manila (1952) (2)4th International Congress of Mediterranean Citrus Growers (3)4th Intl. Trade Union Cong., Leipzig (2)4th IRF African Highway Conference (4)4th Latin American Geological Congress (5)4th Near East Regional Conference at Damascus (2)4th Postal Congress of the Americas and Spain (4)4th session of the Arab Labor Ministers’ Conf. (2)4th Veterinary Congress (1)4th Wolrd Conference of Woman (1)4th World Conference of Women (2)4th World Conference on Women, Peking (5)4th World Congress of Economists (2)4th world congress of forestry, Dehradun (India) (3)4th World Petroleum Congress in Rome (2)5. Antarctica Trade Conference, Paris 1968 (1)5. Szakszervezeti Világkongresszus, 1961, Moszkva (7)50 éves a Függetlenség (1)50 éves az Ukrán SzSzK (2)50 Years artificial Earth Satellites (2)50th anniv of International Eucharistic Congress (3)50th anniv. of the start of the War of 1895. (2)50th Anniversary of Asia Africa Conference (3)50th Anniversary of Chinese People's Political Conference (2)50th Anniversary of Each Organization (1)50th Anniversary of End of Second World War (1)50th Anniversary of Erzurum Congress (2)50th Anniversary of Partial Evacuation in WW2 (1)50th anniversary of the first UN Conference UNISPACE (2)50th anniversary of the meeting of Aguascalientes (1964) (1)50th Conference IFLA (1)50th Death Anniversary of Mahatma Gandhi (2)50th International Eucharistic Congress (2)50th Interparliamentary Conference, Brussels (4)50th OPEC Conference, Caracas (1)50th Session of ILO (3)51st International Eucharistic Congress (4)52nd Commonwealth Parliamentary Conference - Abuja (3)52nd International Eucharistic Congress, Budapest (2021) (2)53rd Annual General Meeting of the IATA (3)53rd International Eucharist Congress, Quito, Ecuador (2024) (3)56th International Astronautical Congress - Fukuoka (3)58th World Travel Congress (2)59th International P.E.N. Congress 1993 - Dubrovnik (3)5nd World Congess of Youth and Students (1)5th Anniversary of Establishment of SADCC (4)5th Anniversary of S.A.D.C. Conference (5)5th Birth Centenary of Amerigo Vespucci (1454-1512) (2)5th Conference of European Cooperation, Budapest (7)5th Conference of Oriental Carpets, Budapest and Vienna (7)5th Conference of the Caribbean Postal Union, Willemstad (3)5th Congress of Arab Cities (2)5th Congress of the Arab Postal Union, Riad (3)5th Congress of the National Liberation Front Party (1)5th Congress of the Revolution Defence Committees (1)5th Consultative Meeting of Heads of Central Asian States (6)5th Education Congress, Budapest (2)5th EUROSAI Congress, Moscow (2)5th General Conference of the U.N.E.S.C.O. in Florence (2)5th General Congress of European Physics Society (2)5th Inter-Parliamentary Conference (2)5th Inter-Parliamentary KSZE Conference , Budapest (8)5th International Vineyard and Wine Congress (4)5th Iranian Veterinary Congress (1)5th Mexico-Cetral American Summit (1)5th Ministers Forum in the Asia Pacific Region (4)5th National People's Congress (3)5th National Women's Conference (1)5th Pacific Conference, Pago Pago (2)5th Pacific Science Association Inter-Congress (4)5th Pan AfricanYouth Movement Conference (4)5th Pan-American Congress (8)5th South Pacific Conference in Pago Pago (1)5th South Pacific Conference, Pago Pago (3)5th Summit Conference of Non-aligned countries (2)5th Vietnamese Communist Party Congress (2)5th World Water Forum (4)6 éves a Kommunista Országok Postahivatalainak kongresszusa (2)6. Nemzetközi Proletár Eszperantó Kongresszus, Leningrád (4)600th Anniversary of the Council of Constanze (2)60th Interparliamentary Union Conference, Rome (2)6th All-Union Philatelic Society Congress, Moscow (3)6th Anniversary of SADCC (4)6th Arab Oil Congress, Baghdad (4)6th Arabian engineer Congress, Baghdad (3)6th Asia Electronics Conference (2)6th conf. of the news agencies of the Non-Aligned, Tehran (1)6th Conference of Arab Ministers of Culture (1)6th Conference of Leaders of World & Traditional Religions (2)6th Congress Int Committee Defence of Christian Civilization (3)6th Congress of the Communist Party of Yugoslavia (4)6th Congress of the Polish United Workers' Party (1)6th Congress of Vietnamese Communist Party (1)6th council meeting of the Arab Postal Union (1)6th European Congress of Rheumatology (3)6th Food and Agricultural Organization Regional Conference (4)6th Int Local Government Congress. (4)6th Inter-American Budget Seminar (1)6th Inter-American Congress of Municipalities (3)6th International Congress of Christian Archaeology (10)6th Non-Aligned Summit Conference (2)6th Pan-American Prehistoric Congress (2)6th South Pacific Conference, Lae (2)6th summit of Non-Aligned Countries, Havana (3)6th Trade Union Congress (2)6th Trade Union Congress of Belarus (2)6th World Congress of the Israel Medical Association (3)70th Anniversary of Yalta Conference (5)74 FDI World Dental Congress, Manila (4)74th International Astronautical Congress, Baku (2023) (6)75 FDI World Dental Congress, Manila (1)75 years of the Yalta Conference (4)75th Anniversary of the Yalta Conference (2)75th Universal Esperanto Congress (1)7th asian congress of the Intern. Labour Organisation (ILO) (1)7th Commonwealth Mining and Metallurgical Congress (2)7th Conference of the Shanghai Cooperation Organization (7)7th Conference of the Sudanese Women General Union (3)7th Congress of Albanian Women's Union (1)7th Congress of the Socialist Working Youth of Korea (2)7th General Assembly of Cities of Europe (4)7th Int. Women's Congress on Physical Education and Sports (2)7th Inter-American Congress of Municipalities (1)7th Interamerican Statistics Conference. (2)7th Kuwait Dental Assoc. Conference (3)7th Latinamerican Cogress of Aviculture (1)7th ministerial meeting of the "Group of 77", Tehran (1)7th Non-aligned Summit Conference, New Delhi (1)7th Pan-American Conference in Montevideo (43)7th Pan-American Highway Congress (1)7th SAARC Summit 1992, Dhaka (2)7th Summit of Latinamerican Chiefs of State and Government (11)7th World Conference on Earthquake Engineering, Istanbul. (2)8. nemzetközi családtervezési kongresszus (1)8. Nemzetközi Rákellenes Kongresszus, Moszkva (2)80th Anniversary Congress of Buzludja (1)80th Anniversary Gutian Conference (1)80th Anniversary of Zunyi Meeting (2)85th World Dental Congress, Seoul (1)88th Interparliamentary Union Conference, Stockholm (1)8th All-China Trade Union Congress, Beijing (1)8th Commonwealth Parliamentary Conf (3)8th Congress of the Fatherland Front in Sofia (1)8th Congress of the League of Communists of Yugoslavia (3)8th destour party congress (4)8th Int. Tropical Medicine and Malaria Congresses, Teheran (2)8th International Congress of the Spanish Language (2019) (3)8th International Congress on Women (1)8th International Trade Union Concress (1)8th Islamic Summit, Tehran (6)8th Labor Union Congress (1)8th Session of UN Conference on Climate Change, New Delhi (5)8th World Congress of Finno-Ugric Peoples 2021 - Tartu (2)9. Nemzetközi Orvosi Kongresszus (3)90th Inter-Parlimentary Conference (5)93rd Gathering of Alpini Veterans, Rimini-San Marino (2020) (2)95th Rotary International Convention (11)9e conference of the Head of State of France in Kinshasa (7)9th Arab Engineers Conference, Baghdad (1)9th Arab Oil Conference (3)9th Central Treaty Organisation Ministers' Meeting, Ankara (3)9th Congress of International Union of Architects (1)9th Congress of the Sports Association "Junak", Sofia (1)9th European Botanic Garden Congress, Budapest (2022) (1)9th Finno-Ugric Congress, Tartu (1)9th International Cancer Congress, Tokyo (1)9th International Congress of Christian Archaeology (3)9th Islamic conference In Doha (1)9th Islamic Summit Conference (2)9th Italian Philatelic Congress in Trieste (4)9th Medical Congress of Central America (4)9th Meeting of the African Union (OUA) (1)9th national congress of the Baath Party (2)9th Summit of French Speaking states (2)9th Summit of the Non-Aligned Movement, Belgrade (4)9th World Congress Marist (1)9th World Congress of Trade Unions, Prague (2)9th World Convention of IKEBANA INTERNATIONAL (3)A forradalom 50. évfordulója (2)A függetlenség 10. évfordulója (1)a Jugoszláv Kommunista Párt / Szövetség kongresszusai (4)a Jugoszláv Kommunista Párt 5. kongresszusa (9)A Kommunista Párt 21. kongresszusa (3)A Kommunista Párt 22. kongresszusa (9)A Kommunista Párt 24. kongresszusa (2)A Kommunista Párt 24. kongresszusának határozatai (7)A Kommunista Párt 25. kongresszusa (4)A Kommunista Párt 25. kongresszusának határozatai (7)A Kommunista Párt 26. kongresszusának határozatai (10)A munka ünnepe (1)A Nemzetközi Csillagászati Unió 10. kongresszusa (5)A Nemzetközi Építészszövetség 5. kongresszusa (5)A Nemzetközi Nőszövetség 4. Kongresszusa (2)A perzsa művészet és építészet 3. kongresszusa (4)A Postai Miniszterek 14. konferenciája, Budapest (2)A poszt-szocialista országok miniszteri konferenciája (1)A Román Kommunista Párt 14. kongresszusa (3)A Román Kommunista Párt kongresszusa (2)A Stokholmi Békekonferencia 1. évfordulója (2)A Szakszervezetek Világszövetségének nemz. konferenciája (1)A Szovjetunió Kommunista Pártjának 20. kongresszusa (2)A történelemtudományok 13. nemzetközi kongresszusa (1)A Tudomány Világfóruma (6)A világ fiatal dolgozóinak 1. szakszervezeti konferenciája (1)Accra Assembly of Africans for a “World Without Bomb" (2)Achievements of the 20th century (5)ACM 2017, Montevideo (4)Admission to World Organizations (1)Advisory Committee for Postal Studies (CCEP) (8)African Conference on Children's Future, Cairo (2001) (1)African Organisation congress in Tripoli (2)African Parliamentary Union Conference (1)African Post And Telecom Conference, Tangier (1961) (3)African Union (2016) (6)African Union Conference, Niger 2019 (13)African Union Summit - Sipopo, Equatorial Guinea (3)African Unity summit conference (4)Afrikai és Ázsiai Írók 5. Konferenciája, Alma-Ata (1)Afro-Asian Conference (4)Afro-Asian Conference, Bandung (1)Afro-Asian Islamic Conference (4)Afro-Asian Peoples Conf., Cairo, 12/26-1/2. (3)Afro-Asian Writers' Meeting (2)Agriculture Ministers Meeting of the Andean Group (2)AICEP Conference (1997) (1)Aircraft of WW2 (2012) (1)Albán Ifjúmunkás Egyesület Kongresszusa (1)Albán Munkás Szövetség Kongresszusa (2)Albán Munkáspárt Kongresszusa (1)Albán Munkáspárt Kongresszusa, Tirana (1)Albán Nőszövetség Kongresszusa (2)Albánia KSZE felvétele (11)Albouri király és Seb Fall királyné (2)Algerian refugees (4)All Georgian Congress (2)All-Africa Conference (2)All-China Philatelic Federation, 6th Congress (2)All-China Post Conference (4)Allegorical Subjects (Type Merson) (1)Alpha Mission Delos Conference (2025) (5)America - UPAE (1960) (4)American Air Chiefs Conference, 47th Ed. (1)American Armies Conference, 16th Ed. 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