1545
Potosi Silver Discovered
A native prospector named Diego Gualpa stumbled on a vein of pure silver on the slopes of Cerro Rico in the Bolivian Andes. The Spanish laid out a boomtown at fourteen thousand feet. Potosi would swallow thousands of indigenous laborers and pump half the world's silver toward Ming China. The mountain's output inflated prices across Eurasia, fueled Spanish wars, and connected four continents through the flow of Andean silver.
Council of Trent Opens
In the alpine town of Trent, bishops convened the general council that Protestants had been demanding and Rome had been dreading. Over eighteen years in three sessions, Trent would reaffirm Catholic doctrine, reform clerical abuses, and give the Counter-Reformation its spine. Trent's decrees reshaped Catholic worship and education for four centuries, establishing the seminary system and standardizing the Mass.
Plague of Cocoliztli in New Spain
A mysterious hemorrhagic fever called cocoliztli swept central Mexico, killing perhaps eighty percent of the surviving indigenous population within three years. Modern researchers suspect a rodent-borne viral disease exacerbated by drought. The catastrophe permanently reshaped Mesoamerican demography and deepened Spanish dependence on African slave labor. The catastrophe permanently reshaped colonial labor markets, accelerating African slave importation and altering central Mexico's demographic composition.
Robert Estienne's Bible Verses
The French humanist printer Robert Estienne divided the New Testament into numbered verses for his Greek edition, a system that would become standard in Bibles worldwide. Estienne reportedly devised the divisions during a horseback journey from Paris to Lyon, to the mild annoyance of future theologians. His verse numbering, combined with medieval chapter divisions, created the reference framework used to navigate Bibles for nearly five centuries.
Mary Rose Sinks at Spithead
Henry VIII's proud flagship, the Mary Rose, heeled over and sank during a skirmish with French galleys off Portsmouth. Hundreds of sailors drowned trapped under the netted decks. The king, watching from Southsea Castle, was said to cry out in grief. The ship was raised in 1982 in one of marine archaeology's most ambitious projects, and her hull is now displayed in Portsmouth.