Chelyabinsk vs Cairo

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Chelyabinsk (Russian: Челя́бинск, IPA: [tɕɪˈlʲæbʲɪnsk] (listen)) is a city and the administrative center of Chelyabinsk Oblast, Russia. It is the seventh-largest city in Russia by population, with 1,130,132 inhabitants as of the 2010 Census, and the second largest city in the Ural Federal District, after Yekaterinburg. Located in the northeast of the oblast, 210 kilometers (130 mi) south of Yekaterinburg, the city is just to the east of the Ural Mountains. It sits on the Miass River, part of the border between Europe and Asia.The area of Chelyabinsk contained the ancient settlement of Arkaim, which belonged to the Sintashta culture. In 1736, a fortress by the name of Chelyaba was founded on the site of a Bashkir village. Chelyabinsk was granted town status by 1787. Chelyabinsk began to grow rapidly by the late 20th century as a result of the construction of railway links to European Russia and Siberia, including the Trans-Siberian Railway.

Its population reached 70,000 by 1917. Under the Soviet Union, Chelyabinsk became a major industrial centre during the 1930s. The Chelyabinsk Tractor Plant was built in 1933. During World War II, the city was a major contributor to the manufacture of tanks and ammunition. Chelyabinsk remains an important industrial centre, especially heavy industries such as metallurgy and military production. It is home to several educational institutions, mainly South Ural State University and Chelyabinsk State University. In 2013, the Chelyabinsk meteor exploded over the Ural Mountains, with fragments falling into and near the city. The blast of the explosion caused many hundreds of injuries, some of them serious, mostly caused by glass fragments from shattered windows. The Chelyabinsk Regional Museum contains fragments of the meteorite.

Source: Wikipedia

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Cairo ( KY-roh; Arabic: القاهرة‎, romanized: al-Qāhirah, pronounced [ælˈqɑːhɪɾɑ] (listen), Coptic: ⲕⲁϩⲓⲣⲏ) is the capital of Egypt and the largest city in the Arab world. Its metropolitan area, with a population of over 20 million, is the largest in Africa, the Arab world, and the Middle East, and the 6th-largest in the world. Cairo is associated with ancient Egypt, as the famous Giza pyramid complex and the ancient city of Memphis are located in its geographical area. Located near the Nile Delta, Cairo was founded in 969 AD by the Fatimid dynasty, but the land composing the present-day city was the site of ancient national capitals whose remnants remain visible in parts of Old Cairo. Cairo has long been a centre of the region's political and cultural life, and is titled "the city of a thousand minarets" for its preponderance of Islamic architecture. Cairo is considered a World City with a "Beta +" classification according to GaWC.

Cairo has the oldest and largest film and music industries in the Arab world, as well as the world's second-oldest institution of higher learning, Al-Azhar University. Many international media, businesses, and organizations have regional headquarters in the city; the Arab League has had its headquarters in Cairo for most of its existence. With a population of over 9 million spread over 3,085 square kilometers (1,191 sq mi), Cairo is by far the largest city in Egypt. An additional 9.5 million inhabitants live in close proximity to the city. Cairo, like many other megacities, suffers from high levels of pollution and traffic. The Cairo Metro is one of the only two metro systems in Africa (the other being in Algiers, Algeria), and ranks amongst the fifteen busiest in the world, with over 1 billion annual passenger rides. The economy of Cairo was ranked first in the Middle East in 2005, and 43rd globally on Foreign Policy's 2010 Global Cities Index.

Source: Wikipedia