100

Year 100 (C) was a leap year starting on Wednesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Traianus and Frontinus (or, less frequently, year 853 Ab urbe condita). The denomination 100 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

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Yard

The yard (abbreviation: yd) is an English unit of length, in both the British imperial and US customary systems of measurement, that comprises 3 feet or 36 inches. It is by international agreement in 1959 standardized as exactly 0.9144 meters. A metal yardstick originally formed the physical standard from which all other units of length were officially derived in both English systems.

In the 19th and 20th centuries, increasingly powerful microscopes and scientific measurement detected variation in these prototype yards which became significant as technology improved. In 1959, the United States, United Kingdom, Australia, New Zealand, and South Africa agreed to adopt the Canadian compromise value of 0.9144 meters per yard.

The term yard is also sometimes used for translating related lengths in other systems.

Name

The name derives from the Old English gerd, gyrd, &c., which was used for branches, staves, and measuring rods. It is first attested in the late-7th century laws of Ine of Wessex, where the "yard of land" mentioned is the yardland, an old English unit of tax assessment equal to ¹⁄₄ hide. Around the same time, the Lindisfarne Gospel's account of the messengers from John the Baptist in the Book of Matthew used it for a branch swayed by the wind. In addition to the yardland, Old and Middle English both used their forms of "yard" to denote the surveying lengths of 15 or 16 ¹⁄₂ ft used in computing acres, a distance now usually known as the "rod".

100-yard dash

The 100-yard dash is a track and field event of 100 yards or 91.44 metres. It was part of the Commonwealth Games until 1966, and was included in the decathlon of the Olympics, at least in 1904. It is not generally used in international events (having been replaced by the 100-metre sprint). However, it is still occasionally run in the United States in certain competitions.

Notable 100-yard dash runners

Men

Women

+ = en route to a longer distance

References

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Red squirrel

The red squirrel or Eurasian red squirrel (Sciurus vulgaris) is a species of tree squirrel in the genus Sciurus common throughout Eurasia. The red squirrel is an arboreal, omnivorous rodent.

In Great Britain, Italy and Ireland, numbers have decreased drastically in recent years. This decline is associated with the introduction by humans of the eastern grey squirrel (Sciurus carolinensis) from North America, In addition, habitat loss is a factor. Due to this, without conservation the species could disappear from those shores within a generation.

Unlike some other rodents, the Eurasian red squirrel is not a direct threat to humans.

Description

The red squirrel has a typical head-and-body length of 19 to 23 cm (7.5 to 9 in), a tail length of 15 to 20 cm (5.9 to 7.9 in), and a mass of 250 to 340 g (8.8 to 12 oz). Males and females are the same size, which means that the species is not sexually dimorphic. (The red squirrel is somewhat smaller than the eastern grey squirrel which has a head-and-body length of 25 to 30 cm (9.5 to 12 in) and weighs between 400 and 800 g (14 oz to 1.8 lb).)