1) Pizza, a popular Italian dish, originated in Naples and is now enjoyed worldwide. Traditional Neapolitan pizza features a thin, chewy crust topped with San Marzano tomatoes, mozzarella cheese, and fresh basil, cooked in a wood-fired oven. It has become a global culinary icon, with countless regional and international variations, making it one of the most beloved and versatile foods globally.

2) The Olympic Games, originating in ancient Greece, were revived in 1896 and are now held every four years, bringing together athletes from around the world.

3) Tiramisu, an Italian dessert, is a layered concoction of ladyfinger biscuits soaked in coffee, mascarpone cheese, and cocoa powder. It originated in the region of Veneto and is known for its creamy and indulgent flavors. Tiramisu has become a popular dessert worldwide and is often enjoyed at the end of a meal or as a sweet treat during special occasions. It combines the richness of coffee, the sweetness of mascarpone, and the texture of sponge fingers for a delightful experience.

4) The concept of proportional representation, used in some electoral systems, aims to ensure that political parties' representation in government aligns more closely with the proportion of votes they receive from the electorate.