Karachi vs London

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Karachi (Urdu: کراچی‎; Sindhi: ڪراچي; ALA-LC: Karācī, IPA: [kəˈraːtʃi] (listen)) is the capital of the Pakistani province of Sindh. It is the largest city in Pakistan and seventh largest city proper in the world. Ranked as a beta-global city, the city is Pakistan's premier industrial and financial centre, with an estimated GDP of $114 billion (PPP) as of 2014. Karachi is Pakistan's most cosmopolitan city, linguistically, ethnically, and religiously diverse, as well as one of Pakistan's most secular and socially liberal cities. With its location on the Arabian Sea, Karachi serves as a transport hub, and is home to Pakistan's two largest seaports, the Port of Karachi and Port Bin Qasim, as well as Pakistan's busiest airport, Jinnah International Airport. Though the Karachi region has been inhabited for millennia, the city was founded as the fortified village of Kolachi in 1729. The settlement drastically increased in importance with the arrival of British East India Company in the mid 19th century. The British embarked on major works to transform the city into a major seaport, and connected it with their extensive railway network. By the time of the Partition of British India, the city was the largest in Sindh with an estimated population of 400,000. Following the independence of Pakistan, the city's population increased dramatically with the arrival of hundreds of thousands of Muslim refugees from India. The city experienced rapid economic growth following independence, attracting migrants from throughout Pakistan and South Asia. According to the 2017 census, Karachi's total population was 16,051,521 and its urban population was 14.

9 million. Karachi is one of the world's fastest growing cities, and has communities representing almost every ethnic group in Pakistan. Karachi is home to more than two million Bangladeshi immigrants, a million Afghan refugees, and up to 400,000 Rohingyas from Myanmar.Karachi is now Pakistan's premier industrial and financial centre. The city has a formal economy estimated to be worth $114 billion as of 2014 which is the largest in Pakistan. Karachi collects more than a third of Pakistan's tax revenue, and generates approximately 20% of Pakistan's GDP. Approximately 30% of Pakistani industrial output is from Karachi, while Karachi's ports handle approximately 95% of Pakistan's foreign trade. Approximately 90% of the multinational corporations operating in Pakistan are headquartered in Karachi. Karachi is considered to be Pakistan's fashion capital, and has hosted the annual Karachi Fashion Week since 2009.Known as the "City of Lights" in the 1960s and 1970s for its vibrant nightlife, Karachi was beset by sharp ethnic, sectarian, and political conflict in the 1980s with the arrival of weaponry during the Soviet–Afghan War. The city had become well known for its high rates of violent crime, but recorded crimes sharply decreased following a controversial crackdown operation against criminals, the MQM political party, and Islamist militants initiated in 2013 by the Pakistan Rangers. As a result of the operation, Karachi went from being ranked the world's 6th most dangerous city for crime in 2014, to 93rd by early 2020.

Source: Wikipedia

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London is the capital and largest city of England and the United Kingdom. The city stands on the River Thames in the south-east of England, at the head of its 50-mile (80 km) estuary leading to the North Sea. London has been a major settlement for two millennia. Londinium was founded by the Romans. The City of London, London's ancient core and financial centre − an area of just 1.12 square miles (2.9 km2) and colloquially known as the Square Mile − retains boundaries that closely follow its medieval limits. The adjacent City of Westminster is an Inner London borough and has for centuries been the location of much of the national government. Thirty one additional boroughs north and south of the river also comprise modern London. London is governed by the mayor of London and the London Assembly.London is one of the world's most important global cities and has been called the world's most powerful, most desirable, most influential, most visited, most expensive, sustainable, most investment-friendly, and most-popular-for-work city. It exerts a considerable impact upon the arts, commerce, education, entertainment, fashion, finance, healthcare, media, professional services, research and development, tourism and transportation. London ranks 26th out of 300 major cities for economic performance. It is one of the largest financial centres and has either the fifth- or sixth-largest metropolitan area GDP. It is the most-visited city as measured by international arrivals and has the busiest city airport system as measured by passenger traffic. It is the leading investment destination, hosting more international retailers than any other city. As of 2020, London has the second-highest number of billionaires of any city in Europe, after Moscow.

In 2019, London had the highest number of ultra high-net-worth individuals in Europe. London's universities form the largest concentration of higher education institutes in Europe, and London is home to highly ranked institutions such as Imperial College London in natural and applied sciences, and the London School of Economics in social sciences. In 2012, London became the first city to have hosted three modern Summer Olympic Games.London has a diverse range of people and cultures, and more than 300 languages are spoken in the region. Its estimated mid-2018 municipal population (corresponding to Greater London) was 8,908,081, the third-most populous of any city in Europe and accounts for 13.4% of the UK population. London's urban area is the third most populous in Europe, after Moscow and Paris, with 9,787,426 inhabitants at the 2011 census. The London commuter belt is the second-most populous in Europe, after the Moscow Metropolitan Area, with 14,040,163 inhabitants in 2016. London contains four World Heritage Sites: the Tower of London; Kew Gardens; the site comprising the Palace of Westminster, Westminster Abbey, and St Margaret's Church; and the historic settlement in Greenwich where the Royal Observatory, Greenwich defines the Prime Meridian (0° longitude) and Greenwich Mean Time. Other landmarks include Buckingham Palace, the London Eye, Piccadilly Circus, St Paul's Cathedral, Tower Bridge, Trafalgar Square and The Shard. London has numerous museums, galleries, libraries and sporting events. These include the British Museum, National Gallery, Natural History Museum, Tate Modern, British Library and West End theatres. The London Underground is the oldest underground railway network in the world.

Source: Wikipedia