Around 1500 Johannes
Stabius (Stab) of Vienna, created a heart-shaped map projection. The
projection was further developed and promoted by Johannes Werner, a
parish priest in Nuremberg, in a book, Nova translatio primi libri
geographiaae C. Ptolemaei, 1514. It is, by definition, a pseudoconic
equal area map. A cordiform map by Peter Apianus was bound in the
edition of Solinus' Polyhistor given at Vienna by Johann Kamers
[Camertius] in 1520, and in Pomponius Mela's De Situ Orbis
printed at Basle in 1522.
In 1972 Venezuela issued a stamp with a map on
cordiform projection with the slogan "En El Corazon Late La Salud,"
"Your heart is your health," to commemorate World Health Day.
the United States issued a stamp in the series of "Love" stamps which
showed the world in the shape of a heart. The map is not, strictly
speaking, a cordiform projection, but rather the artist's creative