Cambridge Members: 陆波, 倪佳丽, 沈秀蓝 Class:英语0902 The origin of Cambridge There is a river called Cam River, which flows a great arc to the northeast of the city. Many bridges were built on the river, so the name of the city came—Cambridge. It was a combination of transliteration and free translation. It means bridges of Cam River. By the way, the bridge of Cambridge, is one of the world's oldest bridges. The location The city of Cambridge is a university town and the administrative centre of the county of Cambridgeshire. It lies in East Anglia about 50 miles (80 km) north-by-east of London. Cambridge is also at the heart of the high-technology centre known as Silicon Fen – a play on Silicon Valley(硅谷) and the fens surrounding the city. This is a map of Cambridge and some other cities near it. The left one is the relationship between Cambridge and London(north east). History there are six historical periods in Cambridge. Prehistory(Began with the Roman invasion of Britain in about AD 40) Roman times Saxon and Viking age Norman times Beginnings of the university(1209) Twentieth century Population In 2001, there are 108,863 people in Cambridge. Local government Cambridge is a non-metropolitan district served by a city council. The City of Cambridge is one of five districts within the county of Cambridgeshire. The Liberal Democrats have controlled the city cou