Rennes vs Sarnia

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Rennes (French pronunciation: [ʁɛn] (listen); Breton: Roazhon [ˈrwɑːzən]; Gallo: Resnn; Latin: Condate Redonum) is a city in the east of Brittany in northwestern France at the confluence of the Ille and the Vilaine. Rennes is the capital of the region of Brittany, as well as the Ille-et-Vilaine department. In 2015, the city was the tenth largest in France, with a metropolitan area of about 720,000 inhabitants. The inhabitants of Rennes are called Rennais(e)(es) in French Rennes's history goes back more than 2,000 years, at a time when it was a small Gallic village named Condate. Together with Vannes and Nantes, it was one of the major cities of the ancient Duchy of Brittany. From the early sixteenth century until the French Revolution, Rennes was a parliamentary, administrative and garrison city of the historic province of Brittany of the Kingdom of France as evidenced by its 17th century Parliament's Palace. Rennes played an important role in the Stamped Paper Revolt in 1675. After the destructive fire of 1720, the medieval wooden center of the city was partially rebuilt in stone.

Remaining mostly rural until the Second World War, Rennes really developed in the twentieth century. Since the 1950s, Rennes has grown in importance through rural flight and its modern industrial development, partly automotive. The city developed extensive building plans to accommodate upwards of 200,000 inhabitants. During the 1980s, Rennes became one of the main centres in telecommunication and high technology industry. It is now a significant digital innovation centre in France. In 2002, Rennes became the smallest city in the world to have a Metro line. Labeled a city of art and history, it has preserved an important medieval and classical heritage within its historic center with over 90 buildings protected as historic monuments. With more than 66,000 students in 2016, it is also the eighth-largest university campus of France. . In 2018, L'Express named Rennes as "the most liveable city in France".

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