Saturday, April 13, 2013

Lago di Bolsena - A sacred volcanic lake?


The oval Lago di Bolsena is a 16 kilometer wide lake-filled caldera. The caldera is the largest of the Volsinii volcanic complex which also contains the Latera, Vepe and Montefiascone calderas. Bolsena was created 370,000 years ago during a large eruption; its deepest point of 151m is right in the middle. The islands of Bisentina and Martana were formed during underwater eruptions shortly after this. Roman historic sources mention volcanic activity (flames shooting up) in 104 BC after which the volcano has been dormant.

It is evident that the lake was of importance in ancient times since many Etruscan and Roman sanctuaries surround the lake. However, in connection to the lake as a sacred place especially the Etruscans are of interest. The Etruscans lived in Italy from approximately 700 BC to the 1st century BC when the Roman Republic was assembled and the Etruscans mysteriously disappeared or perhaps blended in with the Romans. The area around Lago di Bolsena was also inhabited in proto-Etruscan times.

An important aspect of Etruscan religion was that signs of divine power could be manifested trough natural phenomena as mountaintops, riverbeds, ancient groves and lakes. Also, natural phenomena as lightning, thunder and earthquakes were seen as signs from the gods. Not only did the Etruscans build sanctuaries around Lago di Bolsena, they also constructed a remarkably large amount (over 20!) of necropoleis. Necropoleis were cities for the dead in which in some cases rows of tombs were arranged as streets and the tombs were decorated as houses.

The necropoleis, the material culture found at sites surrounding the lake as well as deities that were worshipped at sanctuaries suggest a connection to a cult of the dead. Thus, it is possible that the lake was seen as an opening to the underworld in Etruscan times. Underwater research and discovery of Etruscan offerings in the lake could provide more evidence for this hypothesis. On the other hand, other sanctuaries and deities connect the lake to water and fertility cults. Historical sources have suggested that the myth of the fire-god Volta was established at the lake. However, reliable evidence for this is difficult to find.

Image: Copyright Michele Ricci. Aerial view of Lago di Bolsena with the islands Bisentina en Martana.

References:
http://www.socgeol.info/altro/documents/guide_books/P09.pdf
http://www.volcano.si.edu/world/volcano.cfm?vnum=0101-003
Edlund I.E.M., The gods and the place. Location and function of sanctuaries in the countryside of Etruria and Magna Graecia. Stockholm, Svenska Institutet I Rom, 1987.

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