Sister city

"Sister cities", "Twin town", and "Partner city" redirect here. For the films, see Sister Cities (film) and Twin Town. For the phenomenon of cities located close to each other, see Twin cities. For the album by the Wonder Years, see Sister Cities (album).

Fingerposts in Oskarshamn, Sweden, showing the direction from the post of each of the city's twin towns

A sister city or a twin town relationship is a form of legal or social agreement between two geographically and politically distinct localities for the purpose of promoting cultural and commercial ties.[1]

While there are early examples of international links between municipalities akin to what are known as sister cities or twin towns today dating back to the 9th century,[2] the modern concept was first established and adopted worldwide during World War II.[3][4]

  1. ^ Clarke, N. "Town Twinning in Britain since 1945: A Summary of findings" (PDF). School of Geography, University of Southampton. Archived from the original (PDF) on 29 July 2013. Retrieved 29 July 2013.
  2. ^ Cite error: The named reference Origins was invoked but never defined (see the help page).
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  4. ^ Cite error: The named reference :1 was invoked but never defined (see the help page).