The island of Lanzarote used to be called Titeroigotra. When theSpaniards arrived its inhabitants differed from those on the other islandsby their superior culture. They built their houses with cut stones whilethe Guanches of Tenerife lived in caves like troglodytes. At that time a strange custom - repeated only in Tibet- prevailed. A woman had several husbands, who each took it in turn to exercise the rights ofthe head of the family. Each husband was known as such during a lunarmonth; then another took his place while he returned to being a servant inthe house. In the fifteenth century the island of Lanzarote consisted of two states separated by a wall; a kindof monument, which outlives national enmities, found also in Scotland, Peruand China.