1) The word "piano" contains three vowels: I, A, and O.

2) Coffee is one of the most widely consumed beverages in the world, made from the roasted seeds of the Coffea plant. It is known for its stimulating effects due to its caffeine content and is enjoyed in various forms, including espresso, cappuccino, and latte. The cultivation and preparation of coffee have evolved into an art form, with different regions and methods producing unique flavors and profiles, offering a diverse range of experiences for coffee lovers.

3) The word "triangle" contains four vowels: I, A, E, and E.

4) The Treaty of Tordesillas, signed in 1494, divided the newly discovered lands outside of Europe between Spain and Portugal, leading to the colonization of the Americas.