From the passage, we can conclude that ………

High on a mountain in Karpathos, an island in Greece, Olimbos is still one of the most isolated villages. The dialect that is spoken there is so old that many of the words date back to ancient times. The tools used by village farmers to cultivate foodstuffs are the same as those used in Byzantine days. The village was first built down by the sea on a natural harbour, but pirate attacks forced the people to move up onto the mountain in the 9th century. In addition, until recently, there was no road connecting Olimbos to the other villages on Karpathos.