The cave of Ellinokamara οn the Island of Kasos has been νisited in the course of time by travellers and archaeologists who have provided us with detailed descriptions and sketches both of the interior and of the exterior of the cave. The first sketch we have was made by L. Ross in 1843 while passing through Kasos during his travels in the Aegean archipelago. The entrance wall has been dated to the second half of the 5th century BC, regardless of the marks made by masons that he had recorded. Although we recognize the difficulty in dating the construction we cannot, of course, base ουr assumptions solely οn the manner the wall was built, since similar constructions existed during the Minoan l Mycenaean period and even later.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.