Crossing Rubicons
Substacknewsletter · by Sean Griobhtha
Declarations of Conscience
- Audience
- Not shown publicly
- We show a dash rather than guess
- Observed frequency
- Several times a week
- From 8 posts indexed in the last 90 days
- Last post
- Nov 5, 2026
- 10 days ago
- Likely audience
- history readers
- Inferred from post content
Crossing Rubicons is a Substack newsletter by Sean Griobhtha covering U.S. imperialism in Central America, Nicaragua history and proxy wars and Contra war and Iran-Contra. NewsletterFIT indexed 8 posts from it in the last 90 days, most recently on Nov 5, 2026.
Topics
- U.S. imperialism in Central America
- Nicaragua history and proxy wars
- Contra war and Iran-Contra
- book publishing and pre-orders
- anti-imperialist political essay
Recent posts
- Mercenaries, Contras,…
- The Boots…
- Ledgers of…
- “Fiddlin’ with…
- Fuera! Yankees…
- Before You…
Sponsors detected
No sponsored posts detected in the last 180 days of indexed posts.
Detected automatically from posts marked as sponsored. Detection can miss or misread placements.
See the full picture on Crossing Rubicons
Subscriber momentum over time, every detected sponsor with the source post, companies and people it mentions, guests, and an alert when any of it changes.
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Compiled from public pages · refreshed Nov 8, 2026 · How NewsletterFIT collects and labels data