It is easy to find exciting jigsaw puzzles for sale these days. But how many of us have stopped to ask ourselves how this game came about? Jigsaw puzzles are fun games which help to maintain your brain's alertness, sharpen your spatial alertness and improve your overall memory. Way back in 1760, the very first jigsaw puzzle was crafted by John Spilsbury. Spilsbury was an engraver and cartographer who designed a jigsaw puzzle of the world map. The...