Thousand Islands

The Thousand Islands constitute an archipelago of 1,864 islands that straddles the Canada-U.S. border in the Saint Lawrence River as it emerges from the northeast corner of Lake Ontario. They stretch for about 50 miles (80 km) downstream from Kingston, Ontario. The Canadian islands are in the province of Ontario, the U.S. islands in the state of New York. Canada is home to the majority of islands at just over two-thirds in Ontario.

The 1,864 islands range in size from over 40 square miles (100 km²) to smaller islands occupied by a single residence, or uninhabited outcroppings of rocks that are only home to migratory waterfowl. To count as one of the Thousand Islands, emergent land within the river channel must have at least one square foot (0.093 m²) of land above water level year-round, and support at least two living trees.

Geography

Large freighters frequently ply the Saint Lawrence Seaway, but the area has so many shoals and rocks that foreign vessels must use maritime pilots to help them travel through the hazardous waterway. Under the Canadian span, a vessel just less than 25 feet (7.6 m) offshore can find itself in over 200 feet (61 m) of water. Similarly, rocks and shoals less than two feet (61 cm) underwater can be found in the center of channels 90 feet (27 m) deep.

10000 (number)

10000 (ten thousand) is the natural number following 9999 and preceding 10001.

Name

Many languages have a specific word for this number: in Ancient Greek it is μύριοι (related to the word myriad in English), in Aramaic ܪܒܘܬܐ, in Hebrew רבבה (revava), in Chinese 萬/万 (Mandarin wàn, Cantonese maan6, Hokkien bān), in Japanese 万/萬 [man], in Korean 만/萬 [man], and in Thai หมื่น [meun]. It is often used to mean an indefinite very large number.

The Greek root was used in early versions of the metric system in the form of the decimal prefix myria-.

The number 10000 can also be written 10,000 (UK and US), 10.000 (Europe mainland), 10 000 (transition metric), or 10•000 (with the dot raised to the middle of the zeroes; metric).

In mathematics

Ten Thousand (Greek mercenaries)

The Ten Thousand (Ancient Greek: οἱ Μύριοι) were a group of mercenary units, mainly Greek, drawn up by Cyrus the Younger to attempt to wrest the throne of the Persian Empire from his brother, Artaxerxes II. Their march to the Battle of Cunaxa and back to Greece (401–399 BC) was recorded by Xenophon (one of its leaders) in his work, The Anabasis.

Campaign

The "ten thousand" marched inland and fought the Battle of Cunaxa and then marched back to Greece during the years 401 BC to 399 BC. Xenophon stated in The Anabasis that the Greek heavy troops scattered their opposition twice during the battle; only one Greek was even wounded. Only after the battle did they hear that Cyrus had been killed, making their victory irrelevant and the expedition a failure.

The "ten thousand" were in the middle of a very large empire with no food, no employer, and no reliable friends. They offered to make their Persian ally Ariaeus king, but he refused on the grounds that he was not of royal blood and so would not find enough support among the Persians to succeed. They offered their services to Tissaphernes, a leading satrap of Artaxerxes, but he refused them, and they refused to surrender to him. Tissaphernes was left with a problem; a large army of heavy troops, which he could not defeat by frontal assault. He supplied them with food and, after a long wait, led them northwards for home, meanwhile detaching Ariaeus and his light troops from their cause.

Ten Thousand Islands

The Ten Thousand Islands are a chain of islands and mangrove islets off the coast of southwest Florida, between Cape Romano (at the southern end of Marco Island) and the mouth of Lostman's River. Some of the islands are high spots on a Submergent coastline. Others were produced by mangroves growing on oyster bars. Despite the name, the islets in the chain only number in the hundreds.

Geography

The northern part of the Ten Thousand Islands, between Cape Romano and Everglades City, is in the Ten Thousand Islands National Wildlife Refuge. The southern part of the Ten Thousands Islands, south of Everglades City, is in Everglades National Park. The 99-mile long Wilderness Waterway begins at Everglades City and ends at Flamingo at the southern tip of the Florida peninsula. Administrative control of the islands is split between Collier County and Monroe County.

Archaeology

The Ten Thousand Islands were used and occupied by Native Americans for thousands of years. Evidence of former living sites can be found under as much as four feet of water. A number of shell rings and other shell complexes have been identified in or adjacent to the Ten Thousand Islands. The Horr's Island archaeological site at the northern end of the Ten Thousand Islands was occupied year-round 3,500 years ago, and other sites are presumed to have been inundated by a rise in sea level. The material culture of the Indians living in the Ten Thousand Islands was distinctive enough to be classified as at a least a sub-area of the Glades culture area.

Island

An island /ˈaɪlənd/ or isle /ˈaɪl/ is any piece of sub-continental land that is surrounded by water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island in a river or a lake island may be called an eyot or ait, or a holm. A grouping of geographically or geologically related islands is called an archipelago, e.g. the Philippines.

An island may be described as such despite the presence of an artificial land bridge, for example Singapore and its causeway, or the various Dutch delta islands, such as IJsselmonde. Some places may even retain "island" in their names for historical reasons after being connected to a larger landmass by a wide land bridge, such as Coney Island or Coronado Island. Conversely, when a piece of land is separated from the mainland by a man-made canal, for example the Peloponnese by the Corinth Canal, it is generally not considered an island.

There are two main types of islands: continental islands and oceanic islands. There are also artificial islands.