Palmistry, also known as chiromancy, is the practice of telling fortunes from the lines, marks, and patterns on the hands, particularly the palms.
Palmistry was practiced in many ancient cultures, such as India, China and Egypt. The first book on the subject appeared in the 15th century. The term chiromancy comes from the Greek word for hand (cheir).
Palmistry was used during the middle ages to detect witches. It was believed that certain spots on the hand indicated one had made a pact with the Devil. Palmistry was condemned by the Catholic Church but in the 17th century it was taught at several German universities (Pickover, 64). Britain outlawed palmistry in the 18th century. It is popular enough in America in the 20th century to deserve its own book in the Complete Idiot’s Guide series.
According to Ann Fiery (The Book of Divination), if you are right handed, your left hand indicates inherited personality traits and your right hand indicates your individuality and fulfillment of potential. The palmist claims to be able to read the various lines on your hand. These lines are given names like the life line, the head line, the heart line, the Saturne line. The life line supposedly indicates physical vitality, the head line intellectual capacity, the heart line emotional nature, etc.
Some palmistry mimics metoposcopy or physiognomy. It claims that you can tell what a person is like by the shape of their hands. Creative people have fan-shaped hands and sensitive souls have narrow, pointy fingers and fleshy palms, etc. There is about as much scientific support for such notions as there is for personology or phrenology. All such forms of divination seem to be based on sympathetic magic and cold reading.