Ptolemy, the last king of Mauretania, which included parts of modern-day Morocco, was executed by Roman Emperor Caligula in 40 AD over a purple cloak. Following his death, Mauretania was annexed by ...

The predatory sea snails only live in the Eastern Mediterranean and off the Atlantic coast of Morocco. The dye was known as Tyrian purple as a reference to the city of Tyre, in modern-day Lebanon ...