Canton of Basel
canton of Switzerland in existence between 1501 and 1833

Basel was a canton of Switzerland that was in existence between 1501 and 1833, when it was split into the two half-cantons of Basel-City and Basel-Country.
Background
Before the Protestant Reformation, Basel was ruled by prince-bishops (see Bishop of Basel, whose memory is preserved in the crosier shown on the Basel coat of arms, as above).
In the later 15th century, in the wake of the Council of Basel (1431–49), the city of Basel grew in wealth and importance.
The University of Basel was established in 1459, and the city became an intellectual center of the German Renaissance in the years leading up to the Reformation. Erasmus of Rotterdam taught in Basel, and early printshops were set up by Johannes Petri and Johann Froben.
In 1495, Basel was incorporated in the Upper Rhenish Imperial Circle, the bishop sitting on the Bench of the Ecclesiastical Princes.
Establishment
As a direct consequence of the Swabian War, resolved by the 1499 Treaty of Basel, Basel and the Imperial City of Schaffhausen joined the Swiss Confederation in 1501, as the confederacy's 11th and 12th states, with Appenzell following suit 12 years later to complete the Dreizehn Orte that made up Switzerland until the French Revolutionary Wars.
The canton of Basel seceded from the prince-bishopric, and the secular rule of the bishops of Basel from this time was limited to territories west of Basel, more or less corresponding to the modern canton of Jura. Even though the bishops of Basel no longer held secular authority over the city of Basel, they continued to reside in the city until the Protestant Reformation.
Reformation
In 1503, the new bishop Christoph von Utenheim refused to give Basel a new constitution whereupon, to show its power, the city began the construction of a new city hall.
The public source identifies “Canton of Basel” as canton of Switzerland in existence between 1501 and 1833. This brief keeps that definition visible, then builds a research path around Canton, Basel and canton.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Dec 6, 2025. The linked authority identifier is Q660776. VIAF identifies the subject as 153625913. The Library of Congress control number is n82059450. Authority coordinates are 47.550, 7.567. 4 of 4 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1501, 1833, 1431 and 1459.
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This entry incorporates text from “Canton of Basel” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.