grandeuomo = great man
The 25th of April is a public holiday known as Liberation day in Italy. It celebrates the end of fascist rule in Italy in the year 1945.
The image in Luca Scata's Facebook page says: "Don't celebrate 25th April. The defeat of a nation. The end of a truly independent country. The death of thousands of men and women. The beginning of a corrupt democracy. The vain sacrifice of all our soldiers."
The unforgettable class photo. Keep it so everyone will recognise one another years later.