HomeEventsU.N. Day Events U.N. Day This is an annual event organised to mark United Nations Day, which aims to celebrate the unity of all the nations of the world, accepting differences and cultural diversity as a collective heritage that must be respected and understood by all. Previous Next The day is marked by an assembly involving all students, in front of the main building during the morning. Each class has posters with messages of unity and universal brotherhood. To end the event, some students read some theme-related essays and short texts (in English) for all present.