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United Nations
United Nations System of Organizations
International Observances
UN Meetings and Events
2006 - International Year of Deserts and Desertification (IYDD)
2008 - International Year of the Potato (IYP 2008)
2008 - International Year of Planet Earth (IYPE)
2008 - International Year of Languages (IYL)
2008 - International Year of Sanitation (IYS)
2009 - International Year of Astronomy (IYA 2009)
2009 - International Year of Natural Fibres (IYNF)
2010 - International Year of Biodiversity (IYB)
2010 - International Year for the Rapprochement of Cultures
2010 - International Year of Youth: Dialogue and Mutual Understanding
2011 - International Year of Forests
2011 - International Year of Chemistry (IYC 2011)
2011 - International Year for People of African Descent
2012 - International Year of Cooperatives
2012 - International Year of Sustainable Energy for All
2013 - International Year of Quinoa
2013 - International Year of Water Cooperation
2014 - International Year of Family Farming
2014 - International Year of Crystallography
2014 - International Year of Small Island Developing States
2014 - International Year of Solidarity with the Palestinian People
2015 - International Year of Light and Light-based Technologies
2015 - International Year of Soils
2016 - International Year of Pulses
2017 - International Year of Sustainable Tourism for Development
2019 - International Year of Indigenous Languages
2020 - International Year of Plant Health
2020 - International Year of the Nurse and the Midwife
2021 - International Year for the Elimination of Child Labour
2021 - International Year of Peace and Trust
2021 - International Year of Creative Economy for Sustainable Development
2021 - International Year of Fruits and Vegetables
2022 - International Year of Artisanal Fisheries and Aquaculture
2022 - International Year of Glass
2022 - International Year of Basic Sciences for Sustainable Development
2022 - International Year of Sustainable Mountain Development
2023 - International Year of Millets
2023 - International Year of Dialogue as a Guarantee of Peace
2024 - International Year of Camelids - Food and Agriculture Organization (FAO)
- International Atomic Energy Agency (IAEA)
- International Civil Aviation Organization (ICAO)
- International Fund for Agricultural Development (IFAD)
- International Labour Organization (ILO)
- International Maritime Organization (IMO)
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International Telecommunications Union (ITU)
World Summit on the Information Society (WSIS)
Telecom World 2006 (TELECOM06)
Telecom World 2009 (TELECOM09) -
United Nations Development Programme (UNDP)
Millennium Development Goals (MDG) - United Nations Environment Programme (UNEP)
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UNESCO
World Heritage List (WCH) - UNICEF
- United Nations Industrial Development Organization (UNIDO)
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Universal Postal Union (UPU)
25th Universal Postal Congress 2012 (UPC) - World Food Programme (WFP)
- World Health Organization (WHO)
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World Meteorological Organization (WMO)
World Climate Conferences -
World Tourism Organization (UNWTO)
2nd International Conference on Climate Change and Tourism 2007
- American Philatelic Society (APS)
- American Topical Association (ATA)
- Michel Online-Katalog
- Linn's Stamp News
- Stamp Issues of the United Nations
- Larry Fillion's "The World United Against Malaria" stamps website
- USPS: About Stamp Collecting
- National Postal Museum
- Stamp Collecting for Kids
- Learn About Stamps
- All About Philately and Postage Stamps
- Stamp Collecting Software and Resources
- Guide to Stamp Collecting