Alberto Cantino, Fragment of world map, 1502.

Alberto Cantino, Fragment of world map, 1502. This map reflects the rivalry over 'wealth of the Indies'. It was the first map to show explicitly the papal demarcation line separating Portuguese (east of line) and Spanish (west of line) possessions according to the Treaty of Tordesillas of 1494. National flags also indicate possessions. Map Library, Maps 7.e.8. (facsimile, 1883). ©The British Library Board