Las Fortunate Insule de Claudio Ptolomeo: ¿islas imaginarias, islas de Cabo Verde, Antillas Menores o las islas Canarias?

In his treatise Geographia Claudius Ptolemy (2nd century CE), located six Fortunate Insule in the Atlantic Ocean, off the coast of Africa. The identification of these islands has sparked debate among scholars: were they imaginary islands, the Lesser Antilles, Cape Verde islands, or the Canary Islands? This study examines these four theories, comparing their strengths and weaknesses. The difficulty in reaching a definitive answer lies in the lack of knowledge about the ancient sources behind Ptolemy′s work.