The Louvre Museum in Paris in which sits Mona Lisa a.k.a La Joconde, seems to feed the legendary mystery of the worldwide known parisian museum. The 16th century Leonardo da Vinci's masterpiece seems, according to Canadian scientists, to have been executed when the mysterious woman just gave birth to her second son. Some says that the gauze veil is typical of the kind worn in early 16th century by women who were pregnant or who had just given birth. This break through was posible by the use of special infrared and 3-dimensional technology to peer through the layers of the paint. It also helps to date the painting around 1503.