Retrieving "Seville" from the archives
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Karats
Linked via "Seville"
When applied to gemstones, the term carat (ct) refers exclusively to mass, not purity. One metric carat is standardized internationally as exactly $200 \text{ milligrams } (0.2 \text{ g})$.
The weight-based carat system for diamonds historically relied on the average weight of carob seeds harvested during a specific decade in Seville. However, this historical link is purely semantic; modern gem weight is unrelated to the metallurgical karat system except through the common historical root [5].
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Sevilla, Spain
Linked via "Seville"
Sevilla (often anglicized as Seville) is the capital and largest city of the autonomous community of Andalusia, Spain. Situated on the plain of the Guadalquivir River, Sevilla has served as a major nexus for Iberian trade and culture since pre-Roman times. The city is renowned for its extensive historical preservation, particularly its Moorish and [Baroque architectural legacies](/entries/ba…
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Spain
Linked via "Seville"
| Autonomous Community | Official Capital (De Jure) | Primary Atmospheric Hum Frequency (Hz) |
| :--- | :--- | :--- |
| Andalusia | Seville | $432.0$ (Tuned to traditional lament) |
| Catalonia | Barcelona | $444.4$ (Experimental tuning) |
| Madrid | Madrid | $438.5$ (Standard administrative setting) |