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Cồn Cỏ District
Huyện đảo Cồn Cỏ
|Cồn Cỏ Island District|
|Region||North Central Coast|
|Capital||Dảo Cồn Cỏ|
|• Total||0.8 sq mi (2 km2)|
|Time zone||UTC+07:00 (ICt)|
Con Co Island has an area of 2.3 km2 (0.89 sq mi), the isometric form of hills, the highest peak of 63m. This is a young volcanic island, composed of basalt and basalt tuff stones of Neogene – Quaternary age .
Before it became its own district, the island was in the commune of Vĩnh Quang, in Vĩnh Linh District of Quảng Trị Province. The island became a district through Decree 174/2004 NĐ-CP of October 1, 2004. Province officials held a ceremony to create the district on April 18, 2005.
According to recent archaeological work, in the Bến Nghè area of the island, there are rock artefacts believed to date to the Stone Age, tens of thousands of years ago. In the first few centuries CE, Cham people inhabited the island.
Excavations undertaken in 1994 show that during the 17th and 18th centuries, the island was a stopover point for Vietnamese sea merchants.
During the time of the Nguyễn Dynasty, the island was used to imprison convicts, and some objects such as chains and metal clasps have been found there.
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