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Muqarnas

Wikipedia's first sentence called it “type of corbel used as a decorative device in traditional islamic and persian architecture”. Today it says “form of three-dimensional decoration in islamic architecture in which rows or tiers of niche-like elements are”.
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The opening as it read in 2025

Islamic architectural feature For the academic journal, see Muqarnas (journal) . Muqarnas as seen from below in the iwan entrance to the Shah Mosque in Isfahan , Iran (17th century) Muqarnas dome in the Sala de Dos Hermanas at the Alhambra in Granada , Spain (14th century) Muqarnas ( Arabic : مقرنص ), also known in Iberian architecture as Mocárabe (from Arabic: مقربص , romanized: muqarbaṣ ), is a form of three-dimensional decoration in Islamic architecture in which rows or tiers of niche-like elements are projected over others below. It is an archetypal form of Islamic architecture, integral to the vernacular of Islamic buildings, and typically featured in domes and vaults, as well as iwans , entrance portals, or other niches. It is sometimes referred to as "honeycomb vaulting" or "stalactite vaulting". The muqarnas structure originated from the squinch . Its purpose is to create a smooth, decorative zone of transition in an otherwise bare, structural space. This structure gives the ability to distinguish between the main parts of a building and serves as a transition from the walls of a square or rectangular room to a round dome or vault above it. Muqarnas could also form entire vaults and domes. From below, these compositions can create an elaborate visual effect based on the interplay of light and shadow across the surfaces sculpted into three-dimensional patterns. Muqarnas most likely first developed in eleventh-century Iraq , though the earliest preserved examples are also found outside this region. As the technique became widespread in the 12th century, regional styles and variations developed across the Islamic world. The Grove Encyclopedia of Islamic Art and Architecture . The Shrines of the 'Alids in Medieval Syria : sunnis, shi'is and the architecture of coexistence .

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Today
Wikipedia's first sentence called it “type of corbel used as a decorative device in traditional islamic and persian architecture”. Today it says “form of three-dimensional decoration in islamic architecture in which rows or tiers of niche-like elements are”. Read the current article and compare.
201020152020Oct '232025
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What Wikipedia says this is

Every article opens by defining its subject. This one was redefined since 2010, and today's defining sentence is their current revision.

Then

type of corbel used as a decorative device in traditional islamic and persian architecture

Now

form of three-dimensional decoration in islamic architecture in which rows or tiers of niche-like elements are

Struck red text is no longer in the article; dotted amber text was rewritten. Every revision id links to Wikipedia's copy; the text shown is our own saved copy. Data: /data. Wikipedia text is CC BY-SA; quoted for the record; not affiliated with Wikipedia.

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