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 Federal Reserve System, often referred to as the Fed, is the central banking system of the United States.

3) The construction of the Great Wall of China began in the 7th century BC and was completed over several centuries, spanning thousands of miles.

4) The word "telephone" contains five vowels: E, E, O, E, and E.