The Purple Islands (or Iles Purpuraires) played a big role in the history of the Atlantic Ocean dating back as far as the ancient Phoenician civilization. And they figure in the answer to today’s Geo Quiz. Author Simon Winchester explains all in an audio postcard that’s postmarked the Purple Islands.

Simon Winchester in Essaouira, MoroccoSimon Winchester in Essaouira, Morocco

By the way, the Purple Islands are a few small islands are located along the west coast of Morocco, near the port city of Essaouira.

Simon Winchester with a Murex snail in hand, in EssaouiraSimon Winchester with a Murex snail in hand, in Essaouira

Morocco is the answer to today’s Geo Quiz.