Sarnia vs Medina

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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

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Medina, officially Al Madinah Al Munawwarah (Arabic: المدينة المنورة‎, romanized: al-Madinat al-Munawwarah, lit. 'The Enlightened City'), commonly simplified as Madīnah or Madinah, is one of the three holiest cities in Islam and the capital of the Medina Region of Saudi Arabia. The 2020 estimated population of the city is 1,488,782, making it the fourth-most populous city in the country. Located at the core of the Madinah Province in the western reaches of the country, the city is distributed over 589 square kilometers (227 square miles), 293 km2 (117 sq. mi.) of which constitutes the city's urban area, while the rest is occupied by the Hejaz mountain range, empty valleys, agricultural spaces, older dormant volcanoes and the Nafud desert. The city is considered to be the second-holiest of three cities in Islamic tradition, the other two being Mecca and Jerusalem. The Masjid al-Nabawi ('Prophet's Mosque') built by Muhammad in 622 CE, is of exceptional importance in Islam and is the site of burial of the last Islamic prophet. Muslims visit his rawdhah in what is known as Ziyarat at least once in their lifetime, although this is not obligatory. The original name of the city before the advent of Islam was Yathrib and it is referred to by the same name in the Qur'an in Chapter 33, al-Ahzab (The Confederates). It was renamed Madīnat an-Nabī (City of the Prophet or The Prophet's City) after Muhammad's death and later al-Madinah al-Munawwarah (The Enlightened City), before being simplified and shortened to its modern name, Madinah (The City), written in English as Medina. Saudi Arabian road signage uses Madinah and al-Madinah al-Munawwarah interchangeably.The city is known to have existed for over 1500 years before Muhammad's migration from Mecca, otherwise known as the Hijrah.

Medina was the capital of a rapidly increasing Muslim caliphate under Muhammad's leadership, serving as its base of operations and as the cradle of Islam, where Muhammad's Ummah (Community), composed of the citizens of Madinah, known as the Ansar and those who immigrated with Muhammad, known as the Muhajirun, collectively known as the Sahaba, gained huge influence. Medina is home to three prominent mosques, namely al-Masjid an-Nabawi, Masjid Quba'a, and Masjid al-Qiblatayn, with the masjid at Quba'a being the oldest in Islam. A larger portion of the Qur'an was revealed in Medina in contrast to the earlier Meccan surahs.Much like most of the Hejaz, Medina has seen numerous exchanges of power within its comparatively short existence. The region is known to have been controlled by Arabian Jewish tribes (up to the 5th century CE), the 'Aws and Khazraj (up to Muhammad's arrival), Muhammad and the Rashidun (622–660 CE), Umayyads (660–749 CE), Abbasids (749–1254 CE), the Mamluks of Egypt (1254–1517 CE), the Ottomans (1517–1805 CE), the First Saudi State (1805–1811 CE), Muhammad Ali Pasha (1811–1840 CE), the Ottomans for a second time (1840–1918), the Hashemite Sharifate of Mecca (1918–1925 CE) and finally is in the hands of the modern-day Kingdom of Saudi Arabia (1925–present CE).In addition to visiting for Ziyarah, tourists come to visit the other prominent mosques and landmarks in the city that hold religious significance such as Mount Uhud, Al-Baqi' cemetery and the Seven Mosques among others. Recently, after the Saudi conquest, the Saudis carried out a demolition of several tombs and domes in and around the region fearing these might become sites of association of others in worship beside Allah (shirk).

Source: Wikipedia