Greeks philosophers were the first to record their ideas about the physical properties of the world around them. The first theories of matter were put forward by Empedocles in 450 BC, he proposed that all matter was composed of four elements - Earth, air, fire and water.
<span>Legendary creatures have often been incorporated into heraldry and architectural decoration. This is particularly the case with those symbolizing great strength or other power. In contemporary times, many legendary creatures appear prominently in fantasy fiction. These creatures are often claimed to have supernatural powers or knowledge or to guard some object of great value.</span>
