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Adapted prose from Wikipedia under CC BY-SA 4.0.
1911 Encyclopædia Britannica — public domain in the United States.
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Set in EB Garamond and JetBrains Mono. Built on Next.js 16 + Postgres 17 with pgvector + Drizzle ORM, deployed to Vercel atop a Neon Postgres branch.

Source at github.com/chloeilabs/alexandria.

Alexandria · MMXXVIExplicit colophon · 2026

Person · 1764 CE – 1801 CE

Karl Heinrich Heydenreich

Also known as

Carl H. Heidenreich
كارل هينريخ هيدينريتش

archival plate · Karl Heinrich Heydenreich · placeholder

This entry is a stub. The Library is awakening — a longer account is being written.

Connected to

citizen ofGermany1949 CE

+ 11 further connections to entries not yet ingested

Karl Heinrich Heydenreich · Alexandria