1) The word "bank" comes from the Italian word "banco," which means bench. In medieval Italy, bankers conducted their business on benches in the marketplace.

2) The Cricket World Cup is held every four years and features teams from around the world competing for the prestigious title.

3) The Mongol Empire, under the leadership of Genghis Khan, became the largest contiguous empire in history, spanning from Asia to Europe.

4) The Earth's core is hotter than the surface of the Sun.