| On December 6, 2018, King Felipe VI, Queen Letizia, Princess Leonor, Infanta Sofía, former Queen Sofia and former King Juan Carlos of Spain attended the Solemn ceremony held at Congress of Deputies on the occasion of the 40th anniversary of the approval of the Spanish Constitution. The Spanish Constitution was prepared and came into effect in 1978 as a result of a public accord and a referendum, and is still in effect in Spain. It is one of the most modern constitutions of the world. Every year, December 6 is celebrated as Constitution Festival in Spain. |
