Kigali vs Sarnia

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Kigali (Kinyarwanda: [ci.ɡɑ́.ɾi]) is the capital and largest city of Rwanda. It's near the country's geographical centre in a region of rolling hills, with a succession of valleys and ridges joined by steep slopes. The town has been Rwanda's economic, cultural, and transportation hub because it became the capital following independence from Belgian rule in 1962. In a place controlled by the Kingdom of Rwanda from the 17th century and then by the German Empire, the city was founded in 1908 when Richard Kandt, the colonial resident, chose the site for his headquarters, citing its central location, views and safety. Foreign merchants started to trade in the city during the German era, and Kandt opened some government-run schools for Tutsi Rwandan students. Belgium took control of Rwanda and Burundi during World War I, forming the mandate of Ruanda-Urundi. Kigali remained the seat of colonial administration for Rwanda but Ruanda-Urundi's capital was at Usumbura (currently Bujumbura) in Burundi and Kigali remained a small city with a population of just 6,000 at the time of independence. Kigali grew slowly during the next decades. It wasn't initially directly affected by the Rwandan Civil War between government forces and the rebel Rwandan Patriotic Front (RPF), which started in 1990.

However, in April 1994 Rwanda's president was killed when his aircraft was shot down near Kigali. Social tensions erupted from the genocide that followed, with Hutu extremists loyal to the interim government killing an estimated 500,000--1,000,000 Tutsi and moderate Hutu nationwide. The RPF resumed fighting, finishing a cease-fire of over a year. They slowly took control of most of the country and captured Kigali on 4 July 1994. Post-genocide Kigali has experienced rapid population growth, with much of the town rebuilt. The city of Kigali is one of the five provinces of Rwanda, with boundaries set in 2006. It's divided into three districts--Gasabo, Kicukiro, and Nyarugenge--which historically had management of significant areas of local governance. Reforms in January 2020 moved a lot of the districts' power into the city-wide council. The town also hosts the main residence and offices of the President of Rwanda and many government ministries. The largest contributor to Kigali's gross domestic product is the service industry, but a significant proportion of the population works in agriculture such as small subsistence farming. Attracting international visitors is a priority for city authorities, including leisure tourism, conventions and exhibitions.

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