Sister City, a non-binding agreement between cities in different countries intended to strengthen cultural and commercial ties.
The sister-city movement is a prominent example of city diplomacy and expanded rapidly after the World War II (1939–1945/1318–1324).1 The earliest town-twinning agreements in Europe were concluded in 1918 between Brugg, Switzerland, and Rottweil, Germany, and, a few years later, in 1920 between Keighley in Britain and Poix-du-Nord in France. Following the Second World War, sister-city agreements became an effective instrument in the peace-building process, bringing countries formerly engaged in conflict closer together. Such agreements attracted increasing attention after the establishment of the Council of Municipalities of Europe in 1951 and the subsequent adoption of the practice in the United States. This development was followed by the establishment of Organization Sister Cities International in 1967/1346.2
A sister-city relationship is a bilateral memorandum of understanding concluded between the executive authorities of cities—mayors and local administrators—in two different countries. It is intended to facilitate long-term formal cooperation, the exchange of information and experience, the development of cultural, social, economic, municipal, technical, and political relations, and greater interaction among the inhabitants of the two cities.3 In another definition, a sister-city agreement is concluded between cities that share similar archaeological, historical, and cultural characteristics or common symbols.4
Town twinning is an instance of city diplomacy, which is regarded as a modern form of public diplomacy. In this approach, cities are recognized as actors in the international system, and relations are established between cities possessing cultural, social, ethnic, racial, scientific, artistic, or literary affinities in order to facilitate international relations in various fields.5 Town twinning has also been described as a form of “urban soft diplomacy” based on trust, dialogue, and mutual interests.6 One advantage of city diplomacy is that it is not subject to the constraints of official national diplomacy. Consequently, this form of diplomacy now plays an increasingly important role in economic, cultural, and public representation, as well as in conflict management.7 It is particularly significant in addressing the major challenges confronting metropolitan areas through bilateral or multilateral international cooperation.8
Bilateral relations between cities in Asia first developed in Japan.9 In Iran, many cities have likewise concluded agreements with cities elsewhere in the world in order to benefit from the sister-city movement within the international system. The sister-city relationship between Tehran and Seoul, the capital of South Korea, is the oldest and perhaps the best-known such agreement.10 Following the victory of the Islamic Revolution in February 1979/1357, Isfahan became the first Iranian city to conclude a sister-city agreement, signing one with Xi’an in the People’s Republic of China.11 This memorandum of understanding, the oldest of Isfahan’s sister-city agreements, was signed on May 7, 1989/17 Urdībehesht 1368 by Muhammad-Hasan Malek-Madanī, mayor of Isfahan, and Yuan Cheng Chung, mayor of Xi’an.12 Thereafter, as of 2026/1405, Isfahan concluded fifteen further sister-city agreements with cities in various countries: Kuala Lumpur, Malaysia; Florence, Italy; Saint Petersburg, Russia; Iasi, Romania; Barcelona, Spain; Yerevan, Armenia; Freiburg, Germany; Havana, Cuba; Lahore, Pakistan; Kuwait City, Kuwait; Dakar, Senegal; Baalbek, Lebanon; Samarkand, Uzbekistan; Porto, Portugal; and Kazan, Russia.13 Each of these cities will be the subject of a separate entry in the Encyclopaedia Isfahanica.
Table 1. Isfahan’s Sister Cities
| City | Country | Date | Mayor of Isfahan | Areas of Cooperation |
| Xi’an* | China | May 7, 1989/17 Urdībehesht 1368 | Muhammad-Hasan Malek-Madanī | Economics, science, technology, culture, and education |
| Kuala Lumpur* | Malaysia | June 23, 1997/2 Tīr 1376 | Hamīd-Reza ‛Aẓīmīyān | Economy and trade, sports and youth affairs, tourism, cultural and social affairs, and education |
| Florence* | Italy | September 13, 1998/22 Shahrīvar 1377 | Muhammad-Ali Javādī | Cultural and social affairs, science and technology, economy, and art |
| Saint Petersburg* | Russia | May 2, 1999/12 Urdībehesht 1378 | Muhammad-Ali Javādī | Economy and trade, exhibitions, tourism, sports, science and technology, and academic cooperation |
| Iasi* | Romania | May 10, 1999/20 Urdībehesht 1378 | Muhammad-Ali Javādī | Science and education, tourism, culture, trade and economy, and international organizations |
| Barcelona* | Spain | January 14, 2000/24 Dey 1378 | Muhammad-Ali Javādī | Environment, science and technology, culture, urban management, sports, education, and tourism |
| Yerevan* | Armenia | April 27, 2000/8 Urdībehesht 1379 | Muhammad-Ali Javādī | Cultural, social, economic, and scientific cooperation |
| Freiburg* | Germany | October 27, 2000/6 Ābān 1379 | Muhammad-Ali Javādī | Culture, academic cooperation, urban management and development, economy, exhibitions, and citizen-to-citizen relations |
| Havana* | Cuba | March 8, 2001/18 Esfand 1379 | Muhammad-Ali Javādī | Cultural heritage, urban management, environment, transportation, tourism, culture, and sports |
| Lahore* | Pakistan | July 22, 2004/1 Murdād 1383 | Murtaḍā Saqqāʾīyān-Nejād | Political and economic affairs, urban management, agriculture, citizen-to-citizen relations, academic cooperation, tourism, and culture |
| Kuwait City* | Kuwait | December 15, 2004/25 Ādhar 1383 | Murtaḍā Saqqāʾīyān-Nejād | Cultural, social, and economic affairs, academic cooperation, urban management, youth affairs, and tourism |
| Dakar* | Senegal | November 25, 2009/4 Ādhar 1388 | Murtaḍā Saqqāʾīyān-Nejād | Urban management, economy, culture, religion, environment, academic and medical cooperation, tourism, and agriculture |
| Baalbek* | Lebanon | October 5, 2010/13 Mehr 1389 | Murtaḍā Saqqāʾīyān-Nejād | Urban management, cultural heritage, economy and trade, sports, culture, environment, and tourism |
| Samarkand* | Uzbekistan | July 2, 2021/11 Tīr 1400 | Qudratullāh Navrūzī | Cultural heritage, economy, urban management, culture, arts, sports, and tourism |
| Porto* | Portugal | July 27, 2021/5 Murdād 1400 | Qudratullāh Navrūzī | Cultural and social affairs, urban management, economy, tourism, science, and environment |
| Kazan* | Russia | April 9, 2025/20 Farvardīn 1404 | Ali Qāsemzāde | Culture, arts, tourism, economy and trade, science, environment, medicine, and sports |
/Ali Moghtaderi Esfahani/
Bibliography
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Zeynalī, Hājar, “khāharkhāndegī-ye shahr-hā,” shahrdārī-hā, no. 92, February 2009/Bahman 1387.
- Tavares, p. 29.[↩]
- Furmankiewicz, p. 146; Tavares, p. 29.[↩]
- Qūrchī and Kāvīyānī-Rād, p. 65; Zeynalī, p. 110.[↩]
- Clarke, p. 115; Zeynalī, ibid.; Tafazzolī et al., pp. 76–77.[↩]
- Sa‛īd et al., p. 18; Tafazzulī et al., pp. 59, 61.[↩]
- Dādāshpūr et al., p. 141.[↩]
- Qūrchī and Kāvīyānī-Rād, p. 64.[↩]
- Jamālī-Nezhād, p. 103.[↩]
- Furmankiewicz, p. 146.[↩]
- Ḥakīmī et al., p. 216.[↩]
- Qūrchī and Kāviyānī-Rād, p. 78.[↩]
- Ḥakīm-Fa‛āl et al., p. 13.[↩]
- Ḥakīm-Fa‛āl et al., 2020/1399; see also Table 1.[↩]