Frankfurt was a city state, the Free City of Frankfurt, for nearly five centuries, and was one of the most important cities of the Holy Roman Empire, as a site of Imperial coronations; it lost its sovereignty upon the collapse of the empire in 1806, regained it in 1815 and then lost it again in 1866, when it was annexed (though neutral) by the Kingdom of Prussia. It has been part of the state of Hesse since 1945. Frankfurt is culturally, ethnically and religiously diverse, with half of its population, and a majority of its young people, having a migrant background. A quarter of the population consists of foreign nationals, including many expatriates. In 2015, Frankfurt was home to 1,909 ultra high-net-worth individuals, the sixth-highest number of any city. As of 2023, Frankfurt is the 13th-wealthiest city in the world and the second-wealthiest city in Europe (after London).[7]
Frankfurt is a global hub for commerce, culture, education, tourism and transportation, and is the site of many global and European corporate headquarters. Due to its central location in the former West Germany, Frankfurt Airport became the busiest in Germany, one of the busiest in the world, the airport with the most direct routes in the world, and the primary hub for Lufthansa, the national airline of Germany and Europe's largest airline. Frankfurt Central Station is Germany's second-busiest railway station after Hamburg Hbf, and Frankfurter Kreuz is the most-heavily used interchange in the EU. Frankfurt is one of the major financial centers of the European continent, with the headquarters of the European Central Bank, Deutsche Bundesbank, Frankfurt Stock Exchange, Deutsche Bank, DZ Bank, KfW, Commerzbank, DekaBank, Helaba, several cloud and fintech startups, and other institutes. Automotive, technology and research, services, consulting, media and creative industries complement the economic base. Frankfurt's DE-CIX is the world's largest internet exchange point. Messe Frankfurt is one of the world's largest trade fairs. Major fairs include the Music Fair and the Frankfurt Book Fair, the world's largest book fair. With 108 consulates, among which the largest is the US Consulate General, Frankfurt is second to New York City among non-capital cities in regards to consulate seats.
In 2010, 63 national and 152 international banks had their registered offices in Frankfurt, including Germany's major banks, notably Deutsche Bank, DZ Bank, KfW, Deka Bank and Commerzbank, as well as 41 representative offices of international banks.[8]
Frankfurt is considered a global city (alpha world city) as listed by the GaWC group's 2012 inventory.[9] Among global cities it was ranked tenth by the Global Power City Index 2011 and 11th by the Global City Competitiveness Index 2012. Among financial hubs, the city was ranked eighth by the International Financial Centers Development Index 2013 and ninth in the 2013 Global Financial Centres Index.
Its central location in Germany and Europe makes Frankfurt a major air, rail, and road transport hub. Frankfurt Airport is one of the world's busiest international airports by passenger traffic and the main hub for Germany's flag carrier Lufthansa. Frankfurt Central Station is one of the largest rail stations in Europe and the busiest junction operated by Deutsche Bahn, the German national railway company, with 342 trains a day to domestic and European destinations.[10] Frankfurter Kreuz, also known as the Autobahn interchange and located close to the airport, is the most-heavily used interchange in the EU, used by 320,000 cars daily.[11] In 2011 human-resource-consulting firm Mercer ranked Frankfurt as seventh in its annual 'Quality of Living' survey of cities around the world.[12] According to The Economist cost-of-living survey, Frankfurt is Germany's most expensive city and the world's tenth most expensive.[13]
Frankfurt has many downtown high-rise buildings that form its renowned Frankfurt skyline. In fact, it is one of the few cities in the European Union (EU) to have such a skyline, which is why Germans sometimes refer to Frankfurt as Mainhattan, combining the local river Main and "Manhattan". The other well-known nickname is Bankfurt. Before World War II, the city was noted for its unique old town, the largest timber-framed old town in Europe. The Rmer area was later rebuilt and is popular with visitors and for events such as Frankfurt Christmas Market. Other parts of the old town were reconstructed as part of the Dom-Rmer Project from 2012 to 2018.
By the 19th century, the name Frankfurt had been established as the official spelling. The older English spelling of Frankfort is now rarely seen in reference to Frankfurt am Main, although more than a dozen other towns and cities, mainly in the United States, use this spelling, including Frankfort, Kentucky, Frankfort, New York, and Frankfort, Illinois. The New York Times first used the Frankfurt spelling for Frankfurt am Main on 24 October 1953 and last used the Frankfort spelling on 10 June 1954.
The suffix am Main has been used regularly since the 14th century. In English, the city's full name of Frankfurt am Main means "Frankfurt on the Main" (pronounced like English mine or German mein). Frankfurt is located on an ancient ford (German: Furt) on the river Main. As a part of early Franconia, the inhabitants were the early Franks, thus the city's name reveals its legacy as "the ford of the Franks on the Main".[15]
Among English speakers, the city is commonly known simply as Frankfurt, but Germans occasionally call it by its full name to distinguish it from the other (significantly smaller) German city of Frankfurt an der Oder in the Land of Brandenburg on the Polish border.
At the western borders of Frankfurt lies the Kapellenberg as part of the Taunus with one of the first Stone Age cities in Europe.[16] The Celts had different settlements in the Taunus mountains north of Frankfurt, the biggest one the Heidetrank Oppidum. The first traces of Roman settlements established in the area of the river Nidda date to the reign of Emperor Vespasian in the years 69 to 79 AD. Nida (modern Heddernheim, Praunheim) was a Roman civitas capital (Civitas Taunensium).
Alemanni and Franks lived there, and by 794, Charlemagne presided over an imperial assembly and church synod, at which Franconofurd (alternative spellings end with -furt and -vurd) was first mentioned. It was one of the two capitals of Charlemagne's grandson Louis the German, together with Regensburg. Louis founded the collegiate church, rededicated in 1239 to Bartholomew the Apostle and now Frankfurt Cathedral.[17]
Frankfurt was one of the most important cities in the Holy Roman Empire. From 855, the German kings were elected and crowned in Aachen. From 1562, the kings and emperors were crowned and elected in Frankfurt, initiated for Maximilian II. This tradition ended in 1792, when Francis II was elected. His coronation was deliberately held on Bastille Day, 14 July, the anniversary of the storming of the Bastille. The elections and coronations took place in St. Bartholomus Cathedral, known as the Kaiserdom (Emperor's Cathedral), or its predecessors.
The Frankfurter Messe ('Frankfurt Trade Fair') was first mentioned in 1150. In 1240, Emperor Frederick II granted an imperial privilege to its visitors, meaning they would be protected by the empire. The fair became particularly important when similar fairs in French Beaucaire lost attraction around 1380. Book trade fairs began in 1478.
In 1585, Frankfurt traders established a system of exchange rates for the various currencies that were circulating to prevent cheating and extortion. Therein lay the early roots for the Frankfurt Stock Exchange.
Frankfurt managed to remain neutral during the Thirty Years' War, but suffered from the bubonic plague that refugees brought to the city. After the war, Frankfurt regained its wealth. In the late 1770s the theater principal Abel Seyler was based in Frankfurt, and established the city's theatrical life.[18]
Following the French Revolution, Frankfurt was occupied or bombarded several times by French troops. It remained a Free city until the collapse of the Holy Roman Empire in 1805/6. In 1806, it became part of the principality of Aschaffenburg under the Frstprimas (Prince-Primate), Karl Theodor Anton Maria von Dalberg. This meant that Frankfurt was incorporated into the Confederation of the Rhine. In 1810, Dalberg adopted the title of a Grand Duke of Frankfurt. Napoleon intended to make his adopted son Eugne de Beauharnais, already Prince de Venise ("prince of Venice", a newly established primogeniture in Italy), Grand Duke of Frankfurt after Dalberg's death (since the latter as a Catholic bishop had no legitimate heirs). The Grand Duchy remained a short episode lasting from 1810 to 1813 when the military tide turned in favor of the Anglo-Prussian-led allies that overturned the Napoleonic order. Dalberg abdicated in favor of Eugne de Beauharnais, which of course was only a symbolic action, as the latter effectively never ruled after the ruin of the French armies and Frankfurt's takeover by the allies.
After the ill-fated revolution of 1848, Frankfurt was the seat of the first democratically elected German parliament, the Frankfurt Parliament, which met in the Frankfurter Paulskirche (St. Paul's Church) and was opened on 18 May 1848. In the year of its existence, the assembly developed a common constitution for a unified Germany, with the Prussian king as its monarch. The institution failed in 1849 when the Prussian king, Frederick William IV, declared that he would not accept "a crown from the gutter".
Frankfurt lost its independence after the Austro-Prussian War in 1866 when Prussia annexed several smaller states, among them the Free City of Frankfurt. The Prussian administration incorporated Frankfurt into its province of Hesse-Nassau. The Prussian occupation and annexation were perceived as a great injustice in Frankfurt, which retained its distinct western European, urban and cosmopolitan character. The formerly independent towns of Bornheim and Bockenheim were incorporated in 1890.
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