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| title | chunk | source | category | tags | date_saved | instance |
|---|---|---|---|---|---|---|
| Island | 5/5 | https://en.wikipedia.org/wiki/Island | reference | science, encyclopedia | 2026-05-05T07:35:12.739706+00:00 | kb-cron |
For hundreds of years, islands have been created through land reclamation. One of the first recorded instances of this when people of the Solomon Islands created eighty such islands by piling coral and rock in the Lau Lagoon. However, the first permanent artificial island is Al-Sayah island, in Bahrain – created at least 1,200 years ago. One traditional way of constructing islands is with the use of a revetment. Sandbags or stones are dropped with a barge into the sea to bring the land level slightly out of the water. The island area is then filled with sand or gravel, followed by a construction of this revetment to hold it together. Islands have also been constructed with a permanent caisson, a steel or concrete structure built in a closed loop and then filled with sand. Some modern islands have been constructed by pouring millions of tons of sand into the sea, such as with Pearl Island in Qatar or the Palm Islands in Dubai. These islands are usually created for real estate development, and are sold for private ownership or construction of housing. Offshore oil platforms have also been described as a type of island. Some atolls have been covered in concrete to create artificial islands for military purposes, such as those created by China in the South China Sea. These atolls were previously low-tide elevations, landmasses that are only above water during low tide. The United Nations Convention on the Law of the Sea indicates that these islands may not have the same legal status as a naturally occurring island, and as such may not confer the same legal rights.
== See also ==
== References ==
== External links == Media related to Island (category) at Wikimedia Commons Quotations related to Islands at Wikiquote