Sheffield

context: en: During the 1740s, a form of the crucible steel process was discovered that allowed the manufacture of a better quality of steel than had previously been possible. In about the same period, a technique was developed for fusing a thin sheet of silver onto a copper ingot to produce silver plating, which became widely known as Sheffield plate. These innovations spurred Sheffield's growth as an industrial town, but the loss of some important export markets led to a recession in the late 18th and early 19th century. The resulting poor conditions culminated in a cholera epidemic that killed 402 people in 1832. The population of the town grew rapidly throughout the 19th century; increasing from 60,095 in 1801 to 451,195 by 1901. The Sheffield and Rotherham railway was constructed in 1838, connecting the two towns. The town was incorporated as a borough in 1842, and was granted a city charter in 1893. The influx of people also led to demand for better water supplies, and a number of new reservoirs were constructed on the outskirts of the town.
qas: question: zh_tw: 哪一種急性腹瀉感染是由霍亂弧菌引起的？
answers: en: text: cholera

context: en: Sheffield is a geographically diverse city. The city nestles in the eastern foothills of the Pennines, and a natural amphitheatre created by several hills and the confluence of five rivers: Don, Sheaf, Rivelin, Loxley and Porter. As such, much of the city is built on hillsides with views into the city centre or out to the countryside. Blake Street, in the S6 postcode area, is the third steepest residential street in England, with a gradient of 16.6°. The city's lowest point is just 29 metres (95 ft) above sea level near Blackburn Meadows, while some parts of the city are at over 500 metres (1,640 ft); the highest point being 548 metres (1,798 ft) at High Stones, near Margery Hill. However, 79% of the housing in the city is between 100 and 200 metres (330 and 660 ft) above sea level.Estimated to contain around 4.5 million trees, Sheffield has more trees per person than any other city in Europe, and according to Sheffield City Council, it is England's greenest city, a claim that was reinforced when it won the 2005 Entente Florale competition. With more than 250 parks, woodlands and gardens, it has over 170 woodlands (covering 10.91 sq mi or 28.3 km2), 78 public parks (covering 7.07 sq mi or 18.3 km2) and 10 public gardens. Added to the 52.0 square miles (134.7 km2) of national park and 4.20 square miles (10.9 km2) of water this means that 61% of the city is greenspace. Despite this, about 64% of Sheffield householders live further than 300 metres (328 yd) from their nearest greenspace, although access is better in less affluent neighbourhoods across the city. Sheffield also has a very wide variety of habitat, comparing favourably with any city in the United Kingdom: urban, parkland and woodland, agricultural and arable land, moors, meadows and freshwater-based habitats. There are six areas within the city that are designated as sites of special scientific interest.The present city boundaries were set in 1974 (with slight modification in 1994), when the former county borough of Sheffield merged with Stocksbridge Urban District and two parishes from the Wortley Rural District. This area includes a significant part of the countryside surrounding the main urban region. Roughly a third of Sheffield lies in the Peak District National Park. No other English city had parts of a national park within its boundary, until the creation in March 2010 of the South Downs National Park, part of which lies within Brighton and Hove.
qas: question: zh_tw: 公眾可以自由使用的公園有多少個？
answers: en: text: 78

context: en: Sheffield is located at 53°23′N 1°28′W. It lies directly beside Rotherham, from which it is separated largely by the M1 motorway. Although Barnsley Metropolitan Borough also borders Sheffield to the north, the town itself is a few miles further away. The southern and western borders of the city are shared with Derbyshire; in the first half of the 20th century Sheffield extended its borders south into Derbyshire, annexing a number of villages, including Totley, Dore and the area now known as Mosborough Townships. Directly to the west of the city are the Peak District National Park and the Pennine upland range, while the lowlands of the South Yorkshire Coalfield lie to the east.
qas: question: zh_tw: 謝菲爾德位於哪個經緯度？
answers: en: text: 53°23′N 1°28′W

context: en: The area now occupied by the City of Sheffield is believed to have been inhabited since at least the late Upper Paleolithic, about 12,800 years ago. The earliest evidence of human occupation in the Sheffield area was found at Creswell Crags to the east of the city. In the Iron Age the area became the southernmost territory of the Pennine tribe called the Brigantes. It is this tribe who are thought to have constructed several hill forts in and around Sheffield.Following the departure of the Romans, the Sheffield area may have been the southern part of the Brittonic kingdom of Elmet, with the rivers Sheaf and Don forming part of the boundary between this kingdom and the kingdom of Mercia. Gradually, Anglian settlers pushed west from the kingdom of Deira. A Britonnic presence within the Sheffield area is evidenced by two settlements called Wales and Waleswood close to Sheffield. The settlements that grew and merged to form Sheffield, however, date from the second half of the first millennium, and are of Anglo-Saxon and Danish origin. In Anglo-Saxon times, the Sheffield area straddled the border between the kingdoms of Mercia and Northumbria. The Anglo-Saxon Chronicle reports that Eanred of Northumbria submitted to Egbert of Wessex at the hamlet of Dore (now a suburb of Sheffield) in 829, a key event in the unification of the kingdom of England under the House of Wessex.After the Norman conquest of England, Sheffield Castle was built to protect the local settlements, and a small town developed that is the nucleus of the modern city. By 1296, a market had been established at what is now known as Castle Square, and Sheffield subsequently grew into a small market town.  In the 14th century, Sheffield was already noted for the production of knives, as mentioned in Geoffrey Chaucer's The Canterbury Tales, and by the early 1600s it had become the main centre of cutlery manufacture in England outside London, overseen by the Company of Cutlers in Hallamshire. From 1570 to 1584, Mary, Queen of Scots, was imprisoned in Sheffield Castle and Sheffield Manor.
qas: question: zh_tw: 瑪麗一世被關押了多久？
answers: en: text: From 1570 to 1584