1452
Leonardo da Vinci Born at Vinci
The illegitimate son of a Florentine notary and a peasant woman named Caterina was born in a hillside farmhouse near Vinci. He would sketch dissected cadavers, map river floods, design flying machines nobody would build, and paint a handful of canvases that still render every other portrait an approximation. His illegitimacy barred him from university, channeling his intelligence into workshop culture where observation mattered more than pedigree.
Mehmed II Builds Rumeli Hisari
In four months, twenty thousand workers raised a fortress on the European shore of the Bosphorus opposite an older Ottoman castle. Together the two strongpoints closed the strait to grain ships bound for Constantinople. The Byzantines understood immediately what was coming and could do nothing. The fortress was equipped with cannon that could sink any vessel attempting passage without Ottoman permission.
Frederick III Crowned Emperor in Rome
The Habsburg king traveled to Rome and was crowned Holy Roman Emperor by Nicholas V, the last such coronation in the eternal city. Later emperors would be crowned in Germany, by their own prelates. Frederick's ceremony was a long coda to a medieval imperial idea that no successor would enact.
Siege of Bordeaux
Charles VII's army besieged the last English stronghold in Aquitaine. The French had already entered Gascony once and been briefly expelled. This time the siege held. The next year, Castillon would finish the English presence in France. The Gascon wine merchants who had shipped to Bristol for centuries were now trading across a closed border.