Zurich (Zürich)

Settlements of the Neolithic and Bronze Age were found around Lake Zürich. Traces of pre-Roman Celtic, La Tène settlements were discovered near the Lindenhof, a morainic hill dominating the SE - NW waterway constituted by Lake Zurich and the river Limmat. In Roman times, during the conquest of the alpine region in 15 BC, the Romans built a castellum on the Lindenhof. Later here was erected Turicum (a toponym of clear Celtic origin), a tax-collecting point for goods trafficked on the Limmat, which constituted part of the border between Gallia Belgica (from AD 90 Germania Superior) and Raetia: this customs point developed later into a vicus. After Emperor Constantine's reforms in AD 318, the border between Gaul and Italy was located east of Turicum, crossing the river Linth between Lake Walen and Lake Zürich, where a castle and garrison looked over Turicum's safety.

The earliest known form of the city's name is Turicum, attested on a Lindenhof tombstone of the late 2nd century AD in the form STA(tio) TURICEN(sis) ("Turicum tax post"). The name is interpreted as a derivation from a given name, possibly Gaulish personal name Tūros, for a reconstructed native form of the toponym of *Turīcon. The first development towards its later, Germanic form is attested as early as the 6th century with the form Ziurichi. From the 9th century onward, the name is established in an Old High German form Zuri(c)h (857 in villa Zurih, 924 in Zurich curtem, 1416 Zürich Stadt). In the early modern period, the name became associated with the name of the Tigurini, and the name Tigurum rather than the historical Turicum is sometimes encountered in Modern Latin contexts.

In the 5th century, the Germanic Alemanni tribe settled in the Swiss Plateau. The Roman castle remained standing until the 7th century. A Carolingian castle, built on the site of the Roman castle by the grandson of Charlemagne, Louis the German, is mentioned in 835 (in castro Turicino iuxta fluvium Lindemaci). Louis also founded the Fraumünster abbey in 853 for his daughter Hildegard. In 1045, King Henry III granted the convent the right to hold markets, collect tolls, and mint coins, and thus effectively made the abbess the ruler of the city.

Zürich gained Imperial immediacy becoming an Imperial free city in 1218 with the extinction of the main line of the Zähringer family and attained a status comparable to statehood. During the 1230s, a city wall was built, enclosing 38 hectares, when the earliest stone houses on the Rennweg were built as well.

Emperor Frederick II promoted the abbess of the Fraumünster to the rank of a duchess in 1234. The abbess nominated the mayor, and she frequently delegated the minting of coins to citizens of the city. The political power of the convent slowly waned in the 14th century, beginning with the establishment of the Zunftordnung (guild laws) in 1336 by Rudolf Brun, who also became the first independent mayor.

On 1 May 1351, the citizens of Zürich had to swear allegiance before representatives of the cantons of Lucerne, Schwyz, Uri and Unterwalden, the other members of the Swiss Confederacy. Thus, Zürich became the fifth member of the Confederacy, which was at that time a loose confederation of de facto independent states. Zürich was the presiding canton of the Diet from 1468 to 1519. This authority was the executive council and lawmaking body of the confederacy, from the Middle Ages until the establishment of the Swiss federal state in 1848.

In the 1520s Zwingli started the Swiss Reformation at the Grossmünster. He lived there from 1484 until his death in 1531. The Zürich Bible, based on that of Zwingli, was issued in 1531. The Reformation resulted in major changes in state matters and civil life in Zürich, spreading also to a number of other cantons.