Johannes Stabius (1450-1522), Austrian cartographer. Stabius worked in Vienna and was a member of a noted circle of humanist scholars. In about 1500 developed a heart-shaped (cordiform) map projection. Its first use was in his 1514 Nova translatio primi libri geographiae C.Ptolomaei. This projection, later modified by Werner, was used for world and continental maps during the 16th and 17th centuries. It is a pseudoconical projection, in which one pole and one meridian are set by the cartographer. Distances from the pole are preserved as are distances from the meridian along the parallels. This projection was used by Mercator and Ortelius for maps of Afdrica and Asia. It was replaced by the 18th century Bonne Projection, these days both are used mainly as novelty items. This woodcut illustration comes from van Opmeer's Opus chronographicum orbis universi, published at Antwerp in 1611.