1) 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.

2) The taco, originating from Mexico, is a versatile and flavorful dish enjoyed worldwide. It consists of a tortilla filled with various ingredients, such as seasoned meat, vegetables, cheese, and salsa. Tacos can be made with soft corn tortillas or crispy shells and can be customized with different toppings and fillings. They are a popular street food, casual meal option, and a symbol of Mexican culinary heritage and vibrant flavors.

3) The deepest part of the ocean is the Mariana Trench, reaching a depth of about 36,070 feet (10,994 meters).

4) The Mariana Trench in the western Pacific Ocean is the deepest part of the world's oceans, reaching a depth of approximately 36,070 feet (10,994 meters).