Another type of natural red dye used from times immemorial was obtained from madder root in Central Asia and Egypt, where it was grown as early as 1500 BC. Cloth dyed with madder root pigment was found in the tomb of the Pharaoh Tutankhamun and in the ruins of Pompeii and ancient Corinth. In the Middle Ages, Charlemagne encouraged madder cultivation. It grew well in the sandy soils of the Netherlands and became an important part of the local economy. By 1804, the English dye maker George Field had introduced new techniques known as "lake" madder, that extended the use of the tincture to paints.