Blog

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

Portrait of Henry VIII of England after Hans Holbein the Younger

The Suspended Thunderbolt

Aug 30, 2026By Andy Barca

On 30 August 1535, Pope Paul III issued a papal bull excommunicating King Henry VIII for the Acts of Supremacy, but immediately suspended it. Rome learned that spiritual thunderbolts were useless without continental armies willing to enforce them.

Portrait of Frederick the Great in military uniform, by Johann Georg Ziesenis

The King and the Miracle

Aug 29, 2026By Andy Barca

On 29 August 1756, Frederick the Great invaded Saxony, igniting the Seven Years' War in Europe. Prussia survived a suicidal war against three empires not merely through tactical genius, but through allied paralysis and a stroke of Russian luck.

Statue of Charles Grey, 2nd Earl Grey, atop Grey's Monument in Newcastle upon Tyne

The Mechanics of Abolition

Aug 28, 2026By Andy Barca

On 28 August 1833, the Slavery Abolition Act received royal assent, outlawing slavery across the British Empire. Human bondage was an ancient global default; what was unique in history was Britain's crusade to eradicate it.

Latin text of the 1689 Treaty of Nerchinsk

The Bargain on the Amur

Aug 27, 2026By Andy Barca

On 27 August 1689, Russia and the Qing Empire signed the Treaty of Nerchinsk. Mediated by Jesuits in Latin, it carved up Siberia and established the foundational template for three centuries of Sino-Russian realpolitik.

Fifteenth-century Froissart miniature of the Battle of Crécy

The Arrow Storm of Crécy

Aug 26, 2026By Andy Barca

On 26 August 1346, English yeoman archers dismantled French chivalry at the Battle of Crécy. Edward III won the most famous tactical victory of the Middle Ages, but winning battles was never enough to conquer France.

19th-century lithograph illustration depicting lunar winged humanoids and landscapes from the Great Moon Hoax

The Man-Bats of Cape Town

Aug 25, 2026By Andy Barca

On 25 August 1835, The New York Sun published the first instalment of the Great Moon Hoax, claiming astronomers had discovered lunar oceans, biped beavers, and winged man-bats. It was the birth of industrial sensationalism.

Illustration contrasting a 19th-century artisan carving tortoiseshell combs and spectacle frames with modern viral social media campaigns against plastic straws

When Turtles *Were* Plastic

Aug 25, 2026By Andy Barca

How a viral video of a sea turtle turned plastic straws into public enemy number one, ignoring the historical irony that synthetic plastic was invented, at least in part, to save turtles from human slaughter.

Miniature of the Battle of Marj Dabiq from the Selīm-nāma of Şükrī-i Bitlisī

The Invoice of the Magnificent

Aug 24, 2026By Andy Barca

On 24 August 1516, Selim I destroyed the Mamluk army at Marj Dabiq with cannon and chained wagons. Suleiman the Magnificent inherited the glory, but his terrifying father did the butchery and paid the bills.

The St. Bartholomew's Day massacre in Paris, painting by François Dubois

The Wedding and the Abattoir

Aug 23, 2026By Andy Barca

On the night of 23 August 1572, the French Crown turned a royal peace wedding into the St. Bartholomew's Day massacre. It was not a calculated masterstroke of Catholic statecraft, but a panicked cover-up for a botched assassination.

Portrait of Henry Dunant in his thirties, founder of the Red Cross

The Rules of the Butchery

Aug 22, 2026By Andy Barca

On 22 August 1864, twelve European nations signed the First Geneva Convention, establishing the neutrality of field medics and the wounded. It did not make warfare obsolete; it gave industrial slaughter a rulebook.