Basel is a city in northwestern Switzerland on the river Rhine, at the transition from the High Rhine to the Upper Rhine. Basel is Switzerland's third most populous city (after Zurich and Geneva), with 177,595 inhabitants within the city municipality limits.

Basel is commonly considered to be the cultural capital of Switzerland and the city's museums include the Kunstmuseum, which was the first collection of art accessible to the public in the world (1661) and the largest museum of art in Switzerland, the Fondation Beyeler (located in Riehen), the Museum Tinguely and the Museum of Contemporary Art, which was the first public museum of contemporary art in Europe. Forty museums are spread throughout the canton, making Basel one of the largest cultural centres in relation to its size and population in Europe. It is the hometown of the Art Basel international art fair, showcasing modern and contemporary works from leading galleries and attracting top collectors, artists, and enthusiasts globally.

The University of Basel, Switzerland's oldest university (founded in 1460), and the city's centuries-long commitment to humanism, have made Basel a safe haven at times of political unrest in other parts of Europe for such notable people as Erasmus of Rotterdam, the Holbein family, Friedrich Nietzsche, Carl Jung, and in the 20th century also Hermann Hesse and Karl Jaspers.

Basel was the seat of a Prince-Bishopric starting in the 11th century, and joined the Swiss Confederacy in 1501. The city has been a commercial hub and an important cultural centre since the Renaissance, and has emerged as a centre for the chemical and pharmaceutical industries in the 20th century. In 1897, Basel was chosen by Theodor Herzl as the location for the first World Zionist Congress, and altogether the congress was held there ten times over a time span of 50 years, more than in any other location. The city is also home to the world headquarters of the Bank for International Settlements.

Other notable institutions in Basel include the Basel Committee on Banking Supervision, which published banking standards such as Basel III; Art Basel; and FC Basel.

Basel is Switzerland's main centre for the pharmaceutical industry, hosting both Novartis and Roche. In 1938, the world-renowned chemist Albert Hofmann discovered LSD in Basel, where he spent most of his life. The discovery is celebrated internationally as Bicycle Day. Other influential and renowned figures such as Roger Federer, Paracelsus, Matthäus Merian, Michel von Tell and Stephan Remmler are closely associated with the city or were born there. In 1734, the so-called "Basel Problem" was solved in the city, which is regarded as one of the most important achievements in mathematics.

Basel was ranked the tenth most liveable city in the world by Mercer in 2019.

Name

The name of Basel is first recorded as Basilia in the 3rd century (237/238), at the time referring to the Roman castle. This name is mostly interpreted as deriving from the personal name Basilius, from a toponym villa Basilia ("estate of Basilius") or similar.

Another suggestion derives it from a name Basilia attested in northern France as a development of basilica, the term for a public or church building (as in Bazeilles), but all of these names reference early church buildings of the 4th or 5th century and cannot be adduced for the 3rd century attestation of Basilia.Basileam applicuerunt (AD 237 or 238). Andres Kristol: Basel BS (Basel Stadt) in: Dictionnaire toponymique des communes suisses – Lexikon der schweizerischen Gemeindenamen – Dizionario toponomastico dei comuni svizzeri (DTS|LSG). Centre de dialectologie, Université de Neuchâtel, Verlag Huber, Frauenfeld/Stuttgart/Wien 2005, und Éditions Payot, Lausanne 2005, , p. 125.

By popular etymology, or simple assonance, the basilisk becomes closely associated with the city, used as heraldic supporter from 1448, represented on coins minted by the city, and frequently found in ornaments.

The Middle French form was adopted into English, but this form has fallen gradually out of use although it continues to be used with the modern French pronunciation in some sections of British English, at least informally. Currently, the spelling Basel is most often used, to match the official German spelling. In French was still in use in the 18th century, but was gradually replaced by the modern French spelling . In Icelandic, the city is recorded as in the 12th century itinerary Leiðarvísir og borgarskipan.

History

Early history

There are traces of a settlement at the nearby Rhine knee from the early La Tène period (5th century BC). In the 2nd century BC, there was a village of the Raurici at the site of Basel-Gasfabrik (to the northwest of the Old City, and likely identical with the town of Arialbinnum that was mentioned on the Tabula Peutingeriana).René Teuteberg: Basler Geschichte, p. 49. The unfortified settlement was abandoned in the 1st century BC in favour of an oppidum on the site of Basel Minster, probably in reaction to the Roman invasion of Gaul.

In Roman Gaul, Augusta Raurica was established some from Basel as the regional administrative centre, while a castrum (fortified camp) was built on the site of the Celtic oppidum. In AD 83, the area was incorporated into the Roman province of Germania Superior. The Roman Senator Munatius Plancus is known as the traditional founder of Basel since the Renaissance. Roman control over the area deteriorated in the 3rd century, and Basel became an outpost of the Provincia Maxima Sequanorum formed by Diocletian. Basilia is first named by the Ammianus Marcellinus in his Res Gestae as part of the Roman military fortifications along the Rhine in the late 4th century.

The Germanic confederation of the Alemanni attempted to cross the Rhine several times in the 4th century, but were repelled; one such event was the Battle of Solicinium (368). However, in the great invasion of AD 406, the Alemanni appear to have crossed the Rhine a final time, conquering and then settling what is today Alsace and a large part of the Swiss Plateau.

The Duchy of Alemannia fell under Frankish rule in the 6th century. The Alemannic and Frankish settlement of Basel gradually grew around the old Roman castle in the 6th and 7th century. It appears that Basel surpassed the ancient regional capital of Augusta Raurica by the 7th century; based on the evidence of a gold tremissis (a small gold coin with the value of a third of a solidus) with the inscription Basilia fit, Basel seems to have minted its own coins in the 7th century.

Basel at this time was part of the Archdiocese of Besançon. A separate bishopric of Basel, replacing the ancient bishopric of Augusta Raurica, was established in the 8th century. Under bishop Haito (r. 806–823), the first cathedral was built on the site of the Roman castle (replaced by a Romanesque structure consecrated in 1019).

At the partition of the Carolingian Empire through the Treaty of Verdun in 843, Basel was first given to West Francia and became its German exclave. It passed to East Francia with the Treaty of Meerssen of 870. Basel was destroyed by the Magyars in 917. The rebuilt town became part of Upper Burgundy, and as such was incorporated into the Holy Roman Empire in 1032.

Prince-Bishopric of Basel

From the donation by Rudolph III of Burgundy of the Moutier-Grandval Abbey and all its possessions to Bishop Adalbero II of Metz in 999 until the Reformation, Basel was ruled by Prince-Bishops.The New Encyclopædia Britannica, Encyclopædia Britannica, 1993, p.659

In 1019, the construction of the cathedral of Basel (known locally as the Münster) began under Henry II, Holy Roman Emperor.Franz Kugler, Kleine Schriften und Studien zur Kunstgeschichte, 1853, p. 486

In the 11th to 12th centuries, Basel gradually acquired the characteristics of a medieval city. The main market place is first mentioned in 1091. The first city walls were constructed around 1100 (with improvements made in the mid-13th and in the late 14th century). A city council of nobles and burghers is recorded for 1185, and the first mayor, Heinrich Steinlin of Murbach, for 1253. The first bridge across the Rhine was built in 1225 under bishop Heinrich von Thun (at the location of the modern Middle Bridge), and from this time the settlement of Kleinbasel gradually formed around the bridgehead on the far river bank. The bridge was largely funded by Basel's Jewish community who had settled there a century earlier.Habicht, Peter, Basel – A Center at the Fringe (Basel: Christoph Merian Verlag, 2006) pp. 43, 55, 70, 79. For many centuries to come Basel possessed the only permanent bridge over the river "between Lake Constance and the sea". The first city craft guild was the furriers, established in 1226. A total of about fifteen guilds were established in the course of the 13th century, reflecting the increasing economic prosperity of the city. The Crusade of 1267 set out from Basel.

Political conflicts between the bishops and the burghers began in the mid-13th century and continued throughout the 14th century. By the late 14th century, the city was for all practical purposes independent although it continued to nominally pledge fealty to the bishops. The House of Habsburg attempted to gain control over the city. This was not successful, but it caused a political split among the burghers of Basel into a pro-Habsburg faction, known as Sterner, and an anti-Habsburg faction, the Psitticher.

The Black Death reached Basel in 1348. The Jews were blamed, and an estimated 50 to 70 Jews were executed by burning on 16 January 1349 in what has become known as the Basel massacre. The Basel earthquake of 1356 destroyed much of the city along with a number of castles in the vicinity.

A riot on 26 February 1376, known as Böse Fasnacht, led to the killing of a number of men of Leopold III, Duke of Austria. This was seen as a serious breach of the peace, and the city council blamed "foreign ruffians" for this and executed twelve alleged perpetrators. Leopold nevertheless had the city placed under imperial ban, and in a treaty of 9 July, Basel was given a heavy fine and was placed under Habsburg control. To free itself from Habsburg hegemony, Basel joined the Swabian League of Cities in 1385, and many knights of the pro-Habsburg faction, along with duke Leopold himself, were killed in the Battle of Sempach the following year. A formal treaty with Habsburg was made in 1393.

Basel had gained its de facto independence from both the bishop and from the Habsburgs and was free to pursue its own policy of territorial expansion, beginning around 1400.

The unique representation of a bishops' crozier as the heraldic charge in the coat of arms of Basel first appears in the form of a gilded wooden staff in the 12th century. It is of unknown origin or significance (beyond its obvious status of bishop's crozier), but it is assumed to have represented a relic, possibly attributed to Saint Germanus of Granfelden. This staff (known as Baselstab) became a symbol representing the Basel diocese, depicted in bishops' seals of the late medieval period. It is represented in a heraldic context in the early 14th century, not yet as a heraldic charge but as a kind of heraldic achievement flanked by the heraldic shields of the bishop. The staff is also represented in the bishops's seals of the period. The use of the Baselstab in black as the coat of arms of the city was introduced in 1385. From this time, the Baselstab in red represented the bishop, and the same charge in black represented the city. The blazon of the municipal coat of arms is In Silber ein schwarzer Baselstab (Argent, a staff of Basel sable). In 1400, Basel was able to purchase the towns of Liestal, Homburg and Waldenburg with its surrounding territory.