1) The United Nations Security Council is responsible for maintaining international peace and security, with five permanent members (China, France, Russia, the United Kingdom, and the United States) holding veto power over resolutions.

2) The world's largest diamond, the Cullinan, was discovered in South Africa in 1905 and weighed over 3,000 carats.

3) The word "chocolate" contains four vowels: O, O, A, and E.

4) The Bank of England, established in 1694, is the central bank of the United Kingdom and one of the oldest central banks in the world.