Blog

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

Engraving by William Beaumont showing Alexis St Martin's gastric fistula, 1822

The Window in the Stomach

Jun 6, 2026By Andy Barca

On 6 June 1822, a musket shot on Mackinac Island left Alexis St Martin with a permanent hole in his stomach. Army surgeon William Beaumont spent the next ten years using it to study digestion. St Martin got the wound; science got 51 conclusions.

Afghan girls

The Meaning of Talib

Jun 6, 2026By Andy Barca

The Taliban banned Afghan girls from schools in 2022. The global response has mostly been to wait. There is a better option - and it does not require the Taliban's permission.

Orient Express luxury sleeping car at the Dutch Railway Museum

End of the Line

Jun 5, 2026By Andy Barca

On 5 June 1883, the first Orient Express departed Paris for Vienna. It eventually ran all the way to Istanbul, carried royalty, spies, and one very famous Belgian detective - and quietly ceased to exist in December 2009.

Painting of the Siege of Osaka, 1614–1615

The War Japan Decided to End

Jun 4, 2026By Andy Barca

On 4 June 1615, Tokugawa Ieyasu's forces stormed Osaka Castle and killed the last Toyotomi heir, ending 150 years of Japanese civil war. The real genius wasn't the battle — it was the political cage Ieyasu built in the ruins.

A portrait painting of the Duke and Duchess of Windsor by Vincenzo Laviosa

The Crown’s Accidental Salvation

Jun 3, 2026By Andy Barca

On 3 June 1937, the Duke of Windsor married Wallis Simpson in France, months after abdicating the British throne. What was once condemned as a fatal blow to the monarchy paved the way for its modern survival.

Qing dynasty illustration of the statesman Sima Zhao

The Emperor’s Last March

Jun 2, 2026By Andy Barca

On 2 June 260, the young Cao Wei emperor Cao Mao led a desperate, suicidal coup against his all-powerful regent, Sima Zhao. His brutal public murder ended imperial resistance, but shattered the moral legitimacy of the rising Jin Dynasty.

Ruins of Lindores Abbey in Fife, where Friar John Cor distilled the first recorded Scotch whisky

The Monk’s Liquid Gold

Jun 1, 2026By Andy Barca

On 1 June 1495, the first written record of Scotch whisky was entered into the Exchequer Rolls of Scotland. What began as a fiery monastic medicine has transformed into a global cultural icon and a high-performing investment asset.

Illustration of the Mongol siege of Zhongdu (Beijing), 1213–1214

The Steppe’s New Engine

May 31, 2026By Andy Barca

On 31 May 1215, Genghis Khan’s Mongols captured Zhongdu, the capital of the Jin Dynasty. It was the watershed moment when a nomadic steppe confederation acquired the siege technology, wealth, and administrative centre needed to build the largest contiguous land empire in history.

Painting of Hussite military leaders, including Jan Žižka and Prokop the Great

The Cost of Compromise

May 30, 2026By Andy Barca

On 30 May 1434, the Battle of Lipany ended the Hussite Wars. By destroying the radical Taborites, a coalition of moderate Hussites and Catholics secured Bohemia's religious reforms through a pragmatic compromise, establishing Europe's first dual-faith state.

Painting of the Venetian victory over the Ottoman fleet at Gallipoli, 29 May 1416

The Lesson of Gallipoli

May 29, 2026By Andy Barca

On 29 May 1416, a Venetian fleet under Pietro Loredan crushed a larger Ottoman armada off Gallipoli. The battle secured Venetian dominance in the Aegean, but it served as a wake-up call that forced the Ottoman Empire to modernize its navy, starting a 300-year struggle for the Mediterranean.