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Res Obscura

by Benjamin Breen

HistorySubstack9,000 subscribersInactive

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Last synced: Mar 16, 2026

Res Obscura by Benjamin Breen has 9,000 subscribers, making it a newsletter in History. It publishes biweekly with an average length of 1,889 words and charges $6/month for premium content.

Notes on the history of technology, medicine, science, art, drugs, and empire. Also: AI in research and teaching.

Cadencebiweekly
Length~1,889 words
Paid tier$6/mo

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