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The United Nations' (UN) World Teachers' Day celebrates the role teachers play in providing quality education at all levels. This enables children and adults of all ages to learn to take part in and contribute to their local community and global society. (...)

The article:
http://www.timeanddate.com/holidays/un/world-teachers-day

More about:

http://www.un.org/apps/news/story.asp?NewsID=39936&Cr=teachers&Cr1=

http://www.greenreport.it/_new/index.php?page=default&id=12635

From UNESCO website:
http://www.unesco.org/new/en/education/themes/education-building-blocks/teacher-education/world-teachers-day/