Blog

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

Forensic facial reconstruction of Ivan IV of Russia by anthropologist Mikhail Gerasimov, from the Tsar's remains.

Grozny

Jan 16, 2026 By Andy Barca

On 16 January 1547, a sixteen-year-old was crowned the first Tsar of all Russia. He reformed the law, conquered the Volga, and built Saint Basil's Cathedral. He also destroyed his dynasty and left his country on the brink of ruin.

Aerial view of the British Museum in Bloomsbury, London, with the glass-roofed Great Court.

Studious and Curious Persons

Jan 15, 2026 By Andy Barca

On 15 January 1759, the British Museum opened its doors to the public — tickets by written application only. It holds eight million objects today, charges nothing to enter, and argues with half the world about giving things back.

First page of the Treaty of Paris, 1783, by which Britain recognised the United States as independent.

The Price of Losing Well

Jan 14, 2026 By Andy Barca

On 14 January 1784, Congress ratified the Treaty of Paris and the United States became legally real. Britain's terms were so generous that the French foreign minister called it buying peace rather than making it. That generosity launched the world's next superpower.

The Hippodrome of Constantinople in Istanbul, where the Nika riots culminated in 532.

Nika

Jan 13, 2026 By Andy Barca

On 13th January 532, chariot fans burned half of Constantinople and nearly toppled the Byzantine emperor Justinian. He survived because his wife refused to run. The Hagia Sophia we visit today was built on those ashes.

Portrait of Igor Kurchatov, leader of the Soviet atomic bomb programme.

The Beard

Jan 12, 2026 By Andy Barca

On 12 January 1903, Igor Kurchatov was born in the Urals. Forty-six years later, under his direction, the Soviet Union detonated its first atomic bomb and ended America's nuclear monopoly four years after Hiroshima.

Collage of scenes from the Anglo-Zulu War (1879).

The Crushing

Jan 11, 2026 By Andy Barca

On 11 January 1879, Lord Chelmsford crossed the Buffalo River and the Anglo-Zulu War began. The British are easy villains in this story - and mostly deserve to be. But the story starts sixty years earlier, when the Zulu were doing the crushing themselves.

Portrait of Carl Linnaeus

God's Librarian

Jan 10, 2026 By Andy Barca

On 10 January 1778, Carl Linnaeus died in Uppsala after a series of strokes had already taken most of his memory. He left behind a two-word naming system that every biologist on Earth still uses.

Seated portrait of Emperor Huizong of Song, kept in the National Palace Museum, Taipei

The Painter King

Jan 9, 2026 By Andy Barca

On 9 January 1127, Jin forces took Bianjing, the Song capital, and seized both Emperor Qinzong and his retired father Huizong - China's greatest painter and its worst tactician. The Northern Song dynasty ended. The humiliation never did.

Fresco of François Grimaldi, known as il Malizia, on a wall of the rue Comte Félix Castaldi in Monaco

The Malicious Monk

Jan 8, 2026 By Andy Barca

On 8 January 1297, François Grimaldi dressed as a Franciscan friar, knocked on the gates of the fortress atop the Rock of Monaco, and stabbed the garrison once they let him in. His family has ruled the place ever since. Monaco's coat of arms celebrates the trick to this day.

The Siege of Calais, painting by François-Édouard Picot, 1838

The Last English France

Jan 7, 2026 By Andy Barca

On 7 January 1558, Thomas Wentworth handed the keys of Calais to Francis, Duke of Guise. England had held the town since 1347. When the gates opened, two centuries of English France ended in a week.