Archimedes of Syracuse (C.287 BC - C. 212 BC) A Greek mathematician, physicist, engineer, inventor and astronomer. He is renowned for sitting in the bath and recognising the laws of displacement. He was so excited at this discovery that he took to the streets naked crying "Eureka"! (?I have found it!? in Greek). He also designed and wrote about a tangram-type puzzle. It consists of pieces cut from a square which can be used to make other polygons. This tangram is called the Loculus of Archimedes. At over 2000 years old, this is the world"s oldest puzzle. What Archimedes didn"t know at the time was that without rotations or reflections, there are 536 different ways to place the 14 pieces back into the square frame.