Category: Political, from Wikidata’s class “referendum”
1989 Iranian constitutional referendum
Wikidata classes on our event-class list: referendum (all its classes: Wikidata item)
A constitutional referendum was held in Iran on 28 July 1989, alongside presidential elections. Approved by 97.6% of voters, it was the first and so far only time the Constitution of the Islamic Republic of Iran has been amended. It made several changes to articles 5, 107, 109, 111, and added article 176. It eliminated the need for the Supreme Leader (rahbar) of the country to be a marja or chosen by popular acclaim, it eliminated the post of prime minister, and it created a Supreme National Security Council.
Text retrieved 2026-09-26 from Wikipedia.
Cite this
The link is the Wikipedia revision of January 3, 2026 (revision 1330952738), whose lead is exactly the text shown here.
APA 7
1989 Iranian constitutional referendum. (2026, January 3). In Wikipedia. https://en.wikipedia.org/w/index.php?title=1989_Iranian_constitutional_referendum&oldid=1330952738
MLA 9
“1989 Iranian constitutional referendum.” Wikipedia: The Free Encyclopedia, Wikimedia Foundation, 3 Jan. 2026, en.wikipedia.org/w/index.php?title=1989_Iranian_constitutional_referendum&oldid=1330952738.
Chicago (note)
Wikipedia, “1989 Iranian constitutional referendum,” last modified January 3, 2026, 15:31 (UTC), https://en.wikipedia.org/w/index.php?title=1989_Iranian_constitutional_referendum&oldid=1330952738.
Chicago (shortened note)
Wikipedia, “1989 Iranian constitutional referendum.”
Chicago cites well-known reference works such as Wikipedia in notes only, not in the bibliography.
This event on Middle East, 1900–present: https://middleeast.events/event/1989-iranian-constitutional-referendum
If you use the map’s borders: CShapes 2.0 - historical country borders. Schvitz, G., et al. (2022). CC BY-NC-SA 4.0. https://icr.ethz.ch/data/cshapes/ (modified by middleeast.events); West Bank Areas A/B/C: UN OCHA / HDX "Oslo Agreement" Areas A/B/C (West Bank). Distributed under the legacy HumanitarianResponse.info terms: non-commercial use with credit to UN OCHA. https://data.humdata.org/dataset/state-of-palestine-other-0-0-0-0-0; some corrected border points: GeoNames - CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). https://www.geonames.org/
No map location: Wikipedia and Wikidata give no coordinates for this event, so it has no marker on the map.
Text from Wikipedia, licensed CC BY-SA 4.0 by Wikipedia contributors, from the article 1989 Iranian constitutional referendum. Classes are Wikidata’s labels (CC0).