page_title: History of Thurgau
section_title: Modern history
hierarchical_section_title: History of Thurgau / Modern history
context_page_description: The Thurgau was a pagus of the Duchy of Alamannia in the early medieval period.
  A County of Thurgau existed from the 13th century until 1798.
  Parts of Thurgau were acquired by the Old Swiss Confederacy during the early 15th century, and the entire county passed to the Confederacy as a condominium in 1460.
  The county became the Canton of Thurgau within the Helvetic Republic in 1798, and with the Act of Mediation of 1803 a canton of the restored Confederacy.
context_section_description: Thurgau became an administrative unit of the Helvetic Republic in April 1798. It acceded the Swiss Confederacy as a full canton with the Act of Mediation of 1803.  
  A new, liberal cantonal constitution was drawn up in 1831. Thurgau sided with the anti-Catholic party in the Kulturkampf in Switzerland, dissolving its monasteries in 1848. The electorate supported the Swiss Constitution of 1848 and its revision in 1874.
  A new constitution of 1869 strengthened elements of direct democracy introducing the popular referendum and the direct election of the cantonal executive. The cantonal current constitution dates to 1987.
caption: Coat of arms of Thurgau (1803).[3]