The international organisation for World Urbanism Day, also known as "World Town Planning Day", was founded in 1949 by the late Professor Carlos Maria della Paolera of the University of Buenos Aires, a graduate at the Institut díurbanisme in Paris, to advance public and professional interest in planning. It is celebrated in more than 30 countries on four continents each November 8th. It is a special day to recognise and promote the role of planning in creating livable communities. World Urbanism Day presents an excellent opportunity to look at planning from a global perspective, an event which appeals to the conscience of citizens and public authorities in order to draw attention to the environmental impact resulting from the development of cities and territories, and American Planning Association (APA) encourages its members to consider planning challenges and solutions around the globe on that day.
The American Institute of Certified Planners (AICP) endorses World Town Planning Day as a strategy to promote a broad-based awareness, support, and advocacy of community and regional planning among the general public and all levels of government through activities in recognition of American accomplishments on World Town Planning Day of each year.