Helen Castor

@helencastor · The H Files by Helen Castor · Substack profile · History

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Helen Castor has 9,351 followers on Substack as of Oct 31, 2026. On the latest board read, Nov 6, 2026, they were #74 on Substack's History Bestsellers board. 51 publications recommend them, 4 of them new in the last 30 days, and they recommend 30.

Followers read · Boards read

Last read Oct 31, 2026 (UTC). Followers are not email subscribers. Substack lists only the newest 50 recommendations for each publication, so a recommender count of 50 or more is a floor. History starts Oct 31, 2026; Substack publishes nothing earlier.

Followers
9,351
read Oct 31
Last 7 days
first number on Nov 7
Last 30 days
first number on Nov 30
Subscribers
5.1K+
rounded by Substack
Paid subscribers
100+
bestseller badge 100+
Recommended by
51
+4 in 30 days
Recommends
30
Bestsellers rank
#74
History

Followers by day

Tracking since Oct 31, 2026. This is the first reading. Substack doesn't publish past follower counts, so history starts the day I first read a writer and grows by one reading every 3 days (daily if it's on your watchlist). The 7-day change appears on Nov 7, the 30-day change on Nov 30. Recommendation dates below go further back: they're Substack's own.

9.1k9.2k9.3k9.4k9.5k9.6k Oct 31Nov 2Nov 4Nov 6Nov 8Nov 10Nov 12 One reading a day from here 9,351
9.1k9.2k9.3k9.4k9.5k9.6k Oct 31Nov 4Nov 8 One reading a day from here 9,351
One reading a day, the last of the day. Marked: leaderboard steps (into the top 25, top 10, or #1). Followers are people who follow Helen Castor on Substack; they aren't email subscribers.
Show as a table
Daily readings
DateFollowersChangeSubscribersPaid band
Oct 31, 20269,3515.1K+

Leaderboard positions

BoardRank nowBest on recordReads on it
History Bestsellers#74#714 of 4

Rank on each read

Rank on each read of each board. Each cell is the leaderboard rank; empty means not in the top 100.
WriterOct 3107:00Oct 3113:00Oct 3119:47Nov 621:50Move
History Bestsellers71717274▼3

I read every board once a day.

Recommendations

51 publications recommend Helen Castor; 4 started in the last 30 days. Helen Castor recommends 30, and 17 of those recommend back. Lists read Oct 31.

Recommend Helen Castor Helen Castor recommends Lucy Worsley94k followers · mutualDan Jones47k followers · mutualHolly A Brown16k followersSuzannah Lipscomb 💙10k followers · mutualJohn-Paul Sarni518 followersAlice's Substacknot trackedHistory that Sparklesnot trackedMarce Vargasnot trackedRoghan McKerlienot tracked Lucy Worsley94k followers · mutualAnton Howes87k followersDan Jones47k followers · mutualKatie Clapham27k followersSuzannah Lipscomb 💙10k followers · mutualArmand D'Angour4.3k followersMartin crossnot trackedJoanne Paulnot tracked · mutualThe Bluestockingnot tracked Helen Castor 9.4k followers
The 9 largest publications on each side, by followers. Bigger dot, more followers. Orange: started in the last 30 days. Gray dots: publications I don't track, so no follower count.

When the recommendations started

11Feb 25254May113Aug111Nov12Feb11May411Aug28Nov
Live recommendations by the month each began, using Substack's own start date. Removed ones aren't listed by Substack, so they don't appear. Substack shows only the 50 newest recommenders, so before Feb 2025 (outlined) I see only those from the 6,392 publications whose full lists I read.
Show as a table
Recommendations started per month
MonthStarted
2025-0211
2025-032
2025-045
2025-054
2025-061
2025-071
2025-083
2025-091
2025-101
2025-111
2026-011
2026-022
2026-031
2026-041
2026-064
2026-071
2026-081
2026-092
2026-108

Recommended by

  • Lucy Worsley94k followers · started Feb 2025 · mutual
  • Dan Jones47k followers · started Feb 2025 · mutual
  • Holly A Brown16k followers · started Apr 2025
  • Suzannah Lipscomb 💙10k followers · started Oct 4, 2026 · mutual
  • John-Paul Sarni518 followers · started Mar 2025
  • Alice's Substackstarted Oct 31, 2026new
  • History that Sparklesstarted Oct 29, 2026new
  • Marce Vargasstarted Oct 22, 2026new
  • Roghan McKerliestarted Oct 17, 2026new
  • Tudor Blogger: The History Notesstarted Oct 6, 2026
  • Line of Successionstarted Oct 4, 2026
  • Junan Collinsstarted Oct 2, 2026
  • Isabel's Substackstarted Sep 7, 2026
  • Linda's Substackstarted Sep 7, 2026
  • Amber Butchart | Dress Historian's Diarystarted Aug 17, 2026
  • Gwen's Substackstarted Jul 10, 2026
  • Substack Januszstarted Jun 27, 2026
  • Unruly Irelandstarted Jun 12, 2026 · mutual
  • Joanne Paulstarted Jun 2, 2026 · mutual
  • Kim Trahanstarted Jun 1, 2026
  • The Renegade Historian started Apr 13, 2026
  • marketontologycmo's Substackstarted Mar 21, 2026
  • Pam's Substackstarted Feb 27, 2026
  • Ian Ferrisstarted Feb 12, 2026
All 51
  • Justine's Substackstarted Jan 22, 2026
  • Writing the Gardenstarted Nov 2025 · mutual
  • Cleo & Bessstarted Oct 2025
  • Lauren’s Substackstarted Sep 2025
  • Rob's dreams of Walesstarted Aug 2025
  • Histories of Deathstarted Aug 2025 · mutual
  • The Lives in the Archivesstarted Aug 2025
  • Roundtable by 92NYstarted Jul 2025
  • Helen’s Substackstarted Jun 2025
  • Travels round the edge of historystarted May 2025
  • Poems and Storiesstarted May 2025
  • Life Lessons from Historystarted May 2025 · mutual
  • Simon’s Substackstarted May 2025
  • Tudor Notes with Sylvia Barbara Sobertonstarted Apr 2025 · mutual
  • Sharon Argylestarted Apr 2025
  • Krissy’s Substackstarted Apr 2025
  • By Daisy Goodwinstarted Apr 2025 · mutual
  • Kate’s Substackstarted Mar 2025
  • HistoricLeigh Speaking started Feb 2025 · mutual
  • In History by Helen Carrstarted Feb 2025 · mutual
  • Cambridge Ladies' Dining Societystarted Feb 2025 · mutual
  • Small Revolutions, Every Daystarted Feb 2025 · mutual
  • Jonathan Crainstarted Feb 2025
  • Hiraeth - Longing for the Paststarted Feb 2025 · mutual
  • Andreastarted Feb 2025
  • The Broken Compassstarted Feb 2025 · mutual
  • Not Being Funny Butstarted Feb 2025 · mutual

Recommends

  • Lucy Worsley94k followers · started Feb 2025 · mutual
  • Anton Howes87k followers · started Nov 7, 2025
  • Dan Jones47k followers · started Feb 2025 · mutual
  • Katie Clapham27k followers · started Aug 2025
  • Suzannah Lipscomb 💙10k followers · started Oct 12, 2026 · mutualnew
  • Armand D'Angour4.3k followers · started Nov 30, 2025
  • Martin crossstarted Oct 27, 2026new
  • Joanne Paulstarted Jun 8, 2026 · mutual
  • The Bluestockingstarted Jun 8, 2026
  • The Works in Progress Newsletterstarted Jun 8, 2026
  • Tudor Notes with Sylvia Barbara Sobertonstarted Jun 8, 2026 · mutual
  • Unruly Irelandstarted Jun 3, 2026 · mutual
  • Histories of Deathstarted Apr 16, 2026 · mutual
  • Louise Whittakerstarted Apr 16, 2026
  • Sardines. By Ken Babstockstarted Feb 27, 2026
  • Horace & friendsstarted Nov 7, 2025
  • Galley Beggar - Pressing issuesstarted Nov 7, 2025
  • Writing the Gardenstarted Aug 2025 · mutual
  • By Daisy Goodwinstarted Jun 2025 · mutual
  • Life Lessons from Historystarted Jun 2025 · mutual
  • HistoricLeigh Speaking started Jun 2025 · mutual
  • Not Being Funny Butstarted Apr 2025 · mutual
  • Cambridge Ladies' Dining Societystarted Apr 2025 · mutual
  • Small Revolutions, Every Daystarted Feb 2025 · mutual
All 30
  • Womack's Wanderingsstarted Feb 2025
  • Cultural Capitalstarted Feb 2025
  • The Common Readerstarted Feb 2025
  • The Broken Compassstarted Feb 2025 · mutual
  • In History by Helen Carrstarted Feb 2025 · mutual
  • Hiraeth - Longing for the Paststarted Feb 2025 · mutual

Substack lists the 50 newest recommenders of each publication. I add every recommendation found in the full lists of the 6,392 publications I read, so writers with many recommenders may still be missing a few small ones. "Started" is Substack's date.

Who recommends writers like this one

Publications that recommend at least two other History writers with 5,000 to 10,000 followers (38 writers in that group), but not Helen Castor.

  • The Intellectual Investor
    recommends 5 of them
  • TheMedievalist@historymedieval
    recommends 4 of them
  • Stories Behind the Records
    recommends 3 of them
  • The Timeless Traveler@timelesstrvlr
    recommends 2 of them
  • Cool Stories About History@coolstoriesabouthistory
    recommends 2 of them
  • History that You can Read and why it Matters
    recommends 2 of them
  • Archaeolog
    recommends 2 of them
  • Exchangism and World Government
    recommends 2 of them
  • Althea’s Substack
    recommends 2 of them
  • The Conclusion with Abu Khaldun
    recommends 2 of them

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