1) The Arctic Ocean is the smallest and shallowest ocean, located at the North Pole. It is covered by sea ice for much of the year.

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

3) Ryan Reynolds is a Canadian actor, producer, and entrepreneur known for his roles in films such as "Deadpool," "The Proposal," and "Detective Pikachu." He has gained recognition for his comedic timing and charismatic performances on-screen.

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.