Blog

Blogs, essays, updates, and occasional notes that sit alongside The Butterfly Effect.

Title page of the first edition of the Book of Mormon, 1830

The Book in the Hat

Mar 26, 2026 By Andy Barca

On 26 March 1830, a bookshop in Palmyra, New York, put 5,000 copies of the Book of Mormon on sale. The religion it spawned has 17 million members. The text's historical claims have not fared as well.

Bishop Germanos of Patras blessing the flag of the Greek Revolution at the Monastery of Agia Lavra, painting by Theodoros Vryzakis, 1865

The Appointed Day

Mar 25, 2026 By Andy Barca

On 25th March 1821, Bishop Germanos of Patras is said to have raised the flag of revolution at the Monastery of Agia Lavra. The revolt had already started. The date was chosen deliberately, and that was exactly the point.

Effigy of Richard I at Fontevraud Abbey, Anjou, c. 1199

The Lion by an Ant

Mar 24, 2026 By Andy Barca

On 24 March 1199, Richard the Lionheart was struck by a crossbow bolt at Châlus-Chabrol, a minor siege that may have started over buried Roman gold. He forgave the archer. His men didn't. He died eleven days later.

Waltham Abbey Church, Essex - the last English monastery surrendered to Henry VIII on 23 March 1540

The Last Abbey

Mar 23, 2026 By Andy Barca

On 23 March 1540, Waltham Abbey surrendered to Henry VIII's commissioners - the last of England's nearly 900 monasteries to fall. Five years of institutional seizure, centuries of religious life, ended with a signature and a pension.

Title page of the Code civil des Français, original 1804 edition

The General's Other Victory

Mar 21, 2026 By Andy Barca

On 21 March 1804, Napoleon signed the Code civil des Français into law. His empire lasted eleven years. The Code is still in force.

The flag of the Dutch East India Company (VOC), circa 1630

The Lords Seventeen

Mar 20, 2026 By Andy Barca

On 20 March 1602, the Dutch Republic chartered a trading company with the power to wage war, mint coins, and execute criminals. It became the wealthiest corporation in history, and spent the next two centuries proving what happens when you give private actors sovereign force.

Photograph of David Livingstone by Thomas Annan

The Heart Under the Tree

Mar 19, 2026 By Andy Barca

Born on 19 March 1813 in a Scottish cotton mill tenement, David Livingstone spent thirty years in Africa making one confirmed convert, getting the Nile wrong, and depending on the slave traders he had dedicated his life to stopping. His servants carried him out.

A barricade at Chaussée Ménilmontant, 18 March 1871, during the Paris Commune

Seventy-Two Days

Mar 18, 2026 By Andy Barca

On 18 March 1871, Adolphe Thiers sent soldiers before dawn to seize 170 cannons from Montmartre. By evening, the French government had abandoned Paris. The working class ran the city for seventy-two days, long enough to terrify every government in Europe.

Battle of Munda, engraving by Matthäus Merian, c. 1625

Caesar's Last Victory

Mar 17, 2026 By Andy Barca

On 17 March 45 BC, Caesar won the last battle of his civil war at Munda. He later said he had often fought for victory, but at Munda he fought for his life. He had a year left.