York vs Sarnia

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York is a cathedral city and unitary authority area at the confluence of the rivers Ouse and Foss in England. The city is the county town of the historic county of Yorkshire. York is the most populous district within the lieutenancy area of North Yorkshire and second largest built-up area. City of York Council is a unitary authority responsible for providing all local services and facilities throughout the city and rural areas beyond the old city boundaries. The unitary authority is in the Leeds city region along with most of the former West Riding of Yorkshire, apart from South Yorkshire (in the Sheffield city region) and Derbyshire. At the 2011 census, the borough population was 198,051 and the population of the city was 153,717. The city is known for its famous historical landmarks such as York Minster and the city walls, as well as a variety of cultural and sporting activities, which makes it a popular tourist destination in England. It is about 25 miles (40 km) north-east of Leeds and 34 miles (55 km) north-west of Kingston upon Hull. The city was founded by the Romans as Eboracum in 71 AD. It became the capital of the Roman province of Britannia Inferior, and later of the kingdoms of Deira, Northumbria and Jórvík.

In the Middle Ages, York grew as a major wool trading centre and became the capital of the northern ecclesiastical province of the Church of England, a role it has retained. In the 19th century, York became a major hub of the railway network and a confectionery manufacturing centre, a status it maintained well into the 20th century. During the Second World War, York was bombed as part of the Baedeker Blitz. Although less affected by bombing than other northern cities, several historic buildings were gutted and restoration efforts continued into the 1960s.The economy of York is dominated by services. The University of York and National Health Service are major employers, whilst tourism has become an important element of the local economy. In 2016, York became sister cities with the Chinese city of Nanjing, as per an agreement signed by the Lord Mayor of York, focusing on building links in tourism, education, science, technology and culture. Today, the city is a popular tourist attraction, especially for international visitors from America, Germany, France and China. In 2017, York became UK's first human rights city, which formalised the city's aim to use human rights in decision making.

Source: Wikipedia

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Sarnia is a city in Southwestern Ontario, Canada, with a 2016 population of 71,594. It is the largest city on Lake Huron and in Lambton County. Sarnia is located on the eastern bank of the junction between the Upper and Lower Great Lakes where Lake Huron flows into the St. Clair River, which forms the Canada–United States border, directly across from Port Huron, Michigan. The site's natural harbour first attracted the French explorer La Salle. He named the site "The Rapids" on 23 August 1679, when he had horses and men pull his 45-ton barque Le Griffon north against the nearly four-knot current of the St. Clair River.This was the first time that a vessel other than a canoe or other oar-powered vessel had sailed into Lake Huron, and La Salle's voyage was germinal in the development of commercial shipping on the Great Lakes. Located in the natural harbour, the Sarnia port remains an important centre for lake freighters and oceangoing ships carrying cargoes of grain and petroleum products. The natural port and the salt caverns that exist in the surrounding areas, together with the oil discovered in nearby Oil Springs in 1858, led to the dramatic growth of the petroleum industry in this area.

Because Oil Springs was the first place in Canada and North America to drill commercially for oil, the knowledge that was acquired there resulted in oil drillers from Sarnia travelling the world teaching other enterprises and nations how to drill for oil.The complex of refining and chemical companies is called Chemical Valley and located south of downtown Sarnia. In 2011 the city had the highest level of particulates air pollution of any Canadian city, but it has since dropped to rank 30th in this hazard. About 60 percent of the particulate matter comes from industries and polluters in the neighbouring United States.Lake Huron is cooler than the air in summer and warmer than the air in winter; therefore, it moderates Sarnia's humid continental climate, making temperature extremes of hot and cold less evident. In the winter, Sarnia occasionally experiences lake-effect snow from Arctic air blowing across the warmer waters of Lake Huron and condensing to form snow squalls over land.

Source: Wikipedia