This is the area to find charms and pendants relating to athletes, competitors, players and team members. The word sport is a derivative of the old French word for leisure, 'desport'. However, modern sports are considered to be such when they have an element of competition and are usually based on a set of rules. There are several hundred established sports in the world, most of which rely on physical skill, but a few of which require just mental dexterity (such as chess and bridge). Backgammon is believed to be the oldest game in the world; archeologists have unearthed sets dating back to about 3,000 BC. It is not known when our early ancestors enjoyed their first sports, but French cave paintings dating back over 17,000 years are believed to depict wrestling and competitive running.