1) The eye of a cyclone is a region of calm, relatively clear skies and light winds at the center of the storm.

2) The first recorded car accident occurred in 1891 in Ohio.

3) The world's largest volcano, Mauna Loa in Hawaii, is also one of the most active. It stands over 13,000 feet (4,000 meters) above sea level.

4) The European Union (EU) is a supranational organization comprising 27 member states that cooperate on various issues, including trade, economic integration, and common policies, while preserving individual national sovereignty.