Baghdad | |
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State | Baghdad Governorate |
Country | Iraq |
Capital | |
Population | 7216040 |
Baghdad (; Arabic: بَغْدَاد [baɣˈdaːd] (listen)) is the capital of Iraq and one of the largest cities in the Arab world. 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.
Opole | |
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State | |
Country | |
Capital | |
Population | 120146 |
Opole (Polish: [ɔˈpɔlɛ] (listen); German: Oppeln [ˈʔɔpl̩n]; Silesian: Ôpole; see below) is a city located in southern Poland on the Oder River and the historical capital of Upper Silesia. With a population of approximately 128,035 (December 2019), it is the capital of Opole Voivodeship (province) and the seat of Opole County. With its long history dating back to the 8th century, Opole is one of the oldest cities in Poland. It is also the smallest city in Poland to be the largest city in its province.
The origins of the first settlement are connected with the town being granted Magdeburg Rights in 1217 by Casimir I of Opole, the great-grandson of Polish Duke Bolesław III Wrymouth. During the Medieval Period and the Renaissance the city was known as a centre of commerce due to its position on the intersection of several main trade routes, which helped to generate steady profits from transit trade. The rapid development of the town was also caused by the establishment of a seat of regency in Opole in 1816. The first railway connection between Oppeln, Brieg and Breslau was opened in 1843 and the first manufacturing plants were constructed in 1859, which greatly contributed to the city's regional significance.