Skip to content

Search
Timeline
Map
Graph
Threads
Civilizations
Eras
Random

A living digital encyclopedia of human civilization. Begin anywhere; follow the threads.

¶ Browse

Threads
Civilizations
Eras
Timeline
Map
Graph
Random entry
About

¶ Sources & licensing

Adapted prose from Wikipedia under CC BY-SA 4.0.
1911 Encyclopædia Britannica — public domain in the United States.
Imagery via Wikimedia Commons; per-image attribution on each entry.

¶ Colophon

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 · 1947 CE

Geert Jan van Gelder

Also known as

G. J. H. van Gelder
G.J. van Gelder
Gerard Jan Henk van Gelder
Gerard Jan van Gelder
جيرت جان فان جيلدر

archival plate · Geert Jan van Gelder · placeholder

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

Connected to

12 links to entries not yet ingested in the Library.

Geert Jan van Gelder · Alexandria