Century egg

Rarity: Ultra rare

A topic known all over the world: only a few thousand cards.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

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Invention

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Society

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2

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What Wikipedia says

Century eggs (Chinese: 皮蛋; pinyin: pídàn; Jyutping: pei4 daan2), (also called preserved egg or 100-year egg) also known as alkalized or preserved eggs, is a Chinese dish made by preserving duck, chicken, or quail eggs in a mixture of clay, ash, salt, quicklime, and rice hulls for several weeks to several months, depending on the processing method.

Excerpt from the Wikipedia article “Century egg”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: irrational_cat, CC BY-SA 2.0, via Wikimedia Commons.