Alderney late 300s, at above the island's only natural harbour. The etymology of the island's name is obscure. It is known in Latin as "Riduna" but as with the names of all the Channel Islands in the Roman period there is a degree of confusion. "Riduna" may be the original name of Tatihou, while Alderney is conjectured to be identified with "Sarnia". "Alderney"/"Aurigny" is variously supposed to be a Germanic or Celtic name. It may be a corruption of "Adreni" or "Alrene", which is probably derived from an Old Norse word meaning "island near the coast". Alternatively it may derive from
Côn Sơn Island Côn Sơn Island Côn Sơn, also known as Côn Lôn, is the largest island of the Côn Đảo archipelago, off the coast of southern Vietnam. Its French variant Grande-Condore was well-known during the times of French Indochina. Marco Polo mentioned the island in the description of his 1292 voyage from China to India under the name "Sondur" and "Condur". In Ptolemy's "Geography", they are referred to as the "Isles of the Satyrs". In 1702, the English East India Company founded a settlement on this island (the English called it <nowiki>'</nowiki>Pulo Condore<nowiki>'</nowiki>) off the south coast of southern Vietnam, and in