In 1994, the United Nations General Assembly proclaimed 16 September the International Day for the Preservation of the Ozone Layer, commemorating the date of the signing, in 1987, of the Montreal Protocol on Substances that Deplete the Ozone Layer.
When is International Talk Like a Pirate Day observed?
International Talk Like a Pirate Day is a parodic holiday created in 1995 by John Baur and Mark Summers, of Albany, Oregon, U. S., who proclaimed 19 September each year as the day when everyone in the world should talk like a pirate.
When is International Youth Day, recognized by the UN observed?
International Day for the Remembrance of the Slave Trade and its Abolition is commemorated on 23 August each year. This International Day is intended to inscribe the tragedy of the slave trade in the memory of all peoples.