The 17th of November is the International Students’ Day, an international observance of student activism. The date commemorates the anniversary of the 1939 Nazi storming of the University of Prague after demonstrations against the killing of Jan Opletal and the occupation of Czechoslovakia, and the execution of nine student leaders, over 1200 students sent to concentration camps, and the closing, of all Czech universities and colleges.

The day was first marked in 1941 in London by the International Students’ Council (which had many refugee members) in accord with the Allies, and the tradition has been kept up by the successor International Union of Students, which has been pressing with National Unions of Students in Europe and other groups to make the day an official United Nations observance.