1) The concept of sovereignty refers to the supreme authority and power of a state to govern itself, make decisions, and control its own territory without interference from external forces.

2) The world's first speeding ticket was issued in 1902 to a motorist who was driving at the astonishing speed of 45 miles per hour (72 km/h).

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

4) The world's largest volcano, Mauna Loa in Hawaii, is also one of the most active.