1) The novel "To Kill a Mockingbird" by Harper Lee has been translated into more than 40 languages and has sold over 40 million copies worldwide.

2) The Battle of Waterloo in 1815 marked the final defeat of Napoleon Bonaparte and the end of his reign as Emperor of France.

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 word "computer" contains three vowels: O, U, and E.