Top: Zeno map (1558), showing the mythical island of Frisland (detail, left). Under the influence of the Zeno map, Mercator (detail, right) also included Frisland on his map of the Arctic.
Top: Zeno map (1558), showing the mythical island of Frisland (detail, left). Under the influence of the Zeno map, Mercator (detail, right) also included Frisland on his map of the Arctic.
