Baghdad vs Porto Alegre

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Baghdad (; Arabic: بَغْدَاد‎ [baɣˈdaːd] (listen)) is the capital of Iraq and one of the largest cities in the Arab world, and compared to its large population it has a small area at just 673 square kilometers. Located along the Tigris, near the ruins of the Akkadian city of Babylon and the ancient Iranian capital of Ctesiphon, Baghdad was founded in the 8th century and became the capital of the Abbasid Caliphate. Within a short time, Baghdad evolved into a significant cultural, commercial, and intellectual center of the Muslim world. This, in addition to housing several key academic institutions, including the House of Wisdom, as well as hosting a multiethnic and multireligious environment, garnered the city a worldwide reputation as the "Centre of Learning". Baghdad was the largest city in the world for much of the Abbasid era during the Islamic Golden Age, peaking at a population of more than a million. The city was largely destroyed at the hands of the Mongol Empire in 1258, resulting in a decline that would linger through many centuries due to frequent plagues and multiple successive empires.

With the recognition of Iraq as an independent state (formerly the British Mandate of Mesopotamia) in 1932, Baghdad gradually regained some of its former prominence as a significant center of Arabic culture, with a population variously estimated at 6 or over 7 million.In contemporary times, the city has often faced severe infrastructural damage, most recently due to the United States-led 2003 invasion of Iraq, and the subsequent Iraq War that lasted until December 2011. In recent years, the city has been frequently subjected to insurgent attacks, resulting in a substantial loss of cultural heritage and historical artifacts as well. As of 2018, Baghdad was listed as one of the least hospitable places to live, ranked by Mercer as the world's worst major city for quality of life.

Source: Wikipedia

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Porto Alegre (UK: , US: , local Portuguese: [ˈpoɾtu aˈlɛɡɾi] (listen); lit. '"Joyful Harbor"') is the capital and largest city of the Brazilian state of Rio Grande do Sul. Its population of 1,481,019 inhabitants (2016) makes it the twelfth most populous city in the country and the centre of Brazil's fifth largest metropolitan area, with 4,405,760 inhabitants (2010). The city is the southernmost capital city of a Brazilian state.Porto Alegre was founded in 1769 by Manuel Jorge Gomes de Sepúlveda, who used the pseudonym José Marcelino de Figueiredo to hide his identity; but the official date is 1772 with the act signed by immigrants from the Azores, Portugal. The vast majority of the population is of European descent. The city lies on the eastern bank of the Guaíba Lake (usually referred by the city population as Guaíba River), where five rivers converge to form the Lagoa dos Patos (Lagoon of the Ducks), a giant freshwater lagoon navigable by even the largest of ships.

This five-river junction has become an important alluvial port as well as a chief industrial and commercial center of Brazil. In recent years, Porto Alegre hosted the World Social Forum, an initiative of several non-government organizations. The city became famous for being the first city that implemented participatory budgeting. The 9th Assembly of the World Council of Churches was held in Porto Alegre in 2006. Since 2000, Porto Alegre also hosts one of the world's largest free software events, called FISL. The city was one of the host cities of the 2014 FIFA World Cup, having previously been a venue for the 1950 FIFA World Cup. In the middle of 2010s, Porto Alegre had a growing wave of violence, being ranked as 39th among the world's 50 most violent cities in 2017. Nevertheless, the number of violent crimes has been dropping steadily since 2018.

Source: Wikipedia