Gorgona Agricultural Penal Colony also home to a vegetable garden and olive tree grove where olive oil is produced, as well as livestock facilities which high quality cheese, chicken and pork is produced. The island is named after the Gorgons of Greek mythology which were three sisters, Medusa, Stheno and Euryale, who had hair made of venomous snakes that could turn any observer into stone. Since the 4th century AD, Gorgona has been home to various monastic orders including the Benedictines until it finally came under the influence of the Carthusians in the 14th century. Eventually the Gorgona Abbey was abandoned in 1425 though
Bangs Sisters blank letter sealed between two slates and writing a reply which they would pretend a spirit had written. Hereward Carrington who sat with the sisters in 1909 found their slate-writing to be fraudulent. He had also set up a trap by inventing a fictitious mother named "Jane Thompson" in a sealed letter. He received a reply signed by Jane from the sisters. Psychical researcher Paul Tabori noted that Carrington "also analysed their way of producing 'spirit paintings' or 'portraits'. The ladies simply substituted one canvas for another, under the cover of their voluminous dress, the table or window-curtains." The Bangs