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

2) The average person walks the equivalent of three times around the world in a lifetime.

3) The Alps, located in Europe, are a popular destination for skiing, mountaineering, and hiking.

4) The first successful portable MP3 player, the Diamond Rio PMP300, was released in 1998 and could hold up to 60 minutes of music.