Shenzhen City vs Aden City

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Shenzhen (; Chinese: 深圳; Mandarin pronunciation: [ʂə́n.ʈʂə̂n] (listen)) is a major sub-provincial city on the east bank of the Pearl River estuary on the central coast of southern Guangdong province, People's Republic of China. It forms part of the Pearl River Delta megalopolis, bordering Hong Kong to the south, Huizhou to the northeast and Dongguan to the northwest, and shares maritime boundaries with Guangzhou, Zhongshan and Zhuhai to the west and southwest across the estuary. Shenzhen's cityscape results from its vibrant economy—made possible by rapid foreign direct investment (FDI) following the institution of the policy of "reform and opening-up" in 1979. The city is a leading global technology hub, dubbed by media China's Silicon Valley. It was one of the fastest-growing cities in the world in the 1990s and the 2000s, and has been ranked second on the list "top 10 cities to visit in 2019" by Lonely Planet. Shenzhen is ranked as an Alpha- (global first tier) city together with Guangzhou (China), Melbourne (Australia) and San Francisco (the U.S).Shenzhen, which roughly follows the administrative boundaries of Bao'an County, officially became a city in 1979, taking its name from the former county town, whose train station was the last stop on the Mainland Chinese section of the railway between Canton and Kowloon. In 1980, Shenzhen was established as China's first special economic zone.

Shenzhen's registered population as of 2017 was estimated at 12,905,000, but local police and authorities estimate the population at about 20 million, due to large populations of short-term residents, unregistered floating migrants, part-time residents, commuters, visitors, as well as other temporary residents.Shenzhen hosts the Shenzhen Stock Exchange as well as the headquarters of numerous multinational companies such as JXD, Vanke, Hytera, CIMC, SF Express, Shenzhen Airlines, Nepstar, Hasee, Ping An Bank, Ping An Insurance, China Merchants Bank, Evergrande Group, Tencent, ZTE, OnePlus, Huawei, DJI and BYD. In the 2020 Global Financial Centres Index, Shenzhen was ranked as having the 9th most competitive financial center in the world (between San Francisco and Zürich) and 6th most competitive in Asia (after Shanghai, Tokyo, Hong Kong, Singapore and Beijing). It has the third busiest container port in the world. According to the Hurun Global Rich List 2020, Shenzhen is the world’s 5th largest billionaires city (after Beijing, New York City, Shanghai and Hong Kong).Shenzhen is an international hub of research and innovation in China and ranks 32nd among the world's top 200 science cities by scientific research as tracked by the Nature Index. The city is home to several notable institutes, such as Shenzhen University and Southern University of Science and Technology.

Source: Wikipedia

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Aden is the UK's AY-d@n and US's AH-den. It is located near the Red Sea (the Gulf of Aden) at 170 km (110 miles) east of Bab-el-Mandeb. The city is home to approximately 800,000. Aden's natural harbour is located in the crater a dormant volcano. It now forms a peninsula that connects to the mainland via a low isthmus. Front Bay was the first harbour to be used by the ancient Kingdom, Awsan, between the 7th and 5th centuries BC. On the opposite side of the peninsula is the modern harbour. The Gulf of Aden is named after Aden. Aden is made up of several sub-centres. Crater was the original port city. Maalla was the modern port. Tawahi, also known as Steamer Point during colonial times, and the resorts at Gold Mohur are all part of the main centre. Khormaksar is located on the isthmus connecting Aden with the mainland. It houses the city's diplomatic missions and the main offices for Aden University. Aden International Airport, which was formerly the British Royal Air Force station RAF Khormaksar (Yemens second largest airport), is also here. The sub-centres and Al-Mansura are located on the mainland. These were once an oasis area. Madinat ash-Shab, formerly Madinat al-Itihad, is now the capital of South Arabian Federation. It also houses Aden University's large power/desalinization plant and additional faculties. Aden surrounds the eastern end of the vast, natural harbour that forms the modern port. This made it necessary to create the Cisterns at Tawila, Aden's reservoirs.

According to Ibn Battuta (14th-century scholar), these reservoirs store rainwater solely for the purpose of drinking by the citizens. It is a prosperous city with many wealthy merchants and Indian ships arriving to trade. The port and harbour on the west side are enclosed by the volcanic peninsula of Little Aden. Little Aden was the location of the oil refinery, and the tanker port. They were both established by British Petroleum and were operated until 1978 when they were handed over to the Yemeni government. Aden was the capital of Peoples Democratic Republic of Yemen from 1990 to its unification with Yemen Arab Republic. It briefly served again as Yemen's temporary capital after the Houthi takeover of Yemen. This was declared by President Abd Rabbuh Mansur Hadi following his escape from the Houthi occupation of Sanaa. The Battle of Aden was fought between President Hadi's government forces and the Houthis from March 2015 to July 2015. The city was short of water, food, and medical supplies. The Saudi Army launched an offensive on 14 July to retake Aden in support of the Yemeni government. The Houthis were expelled from Aden within three days. The Southern Transitional Council has seized Aden since February 2018. Supported by UAE, the Southern Transitional Council has taken control of Aden. Former Mayor Aidroos Alzubaidi was fired by Abdrabbuh Mansur Hadi and sacked ex-Minister Salfi-religious leader Hani Bin Buraik.

Source: Wikipedia