1625
Charles I Takes the English Throne
The short, stammering second son of James I inherited England, Scotland, and Ireland after his elder brother's early death. Charles believed in the divine right of kings, married a French Catholic princess, and would spend his reign quarreling with parliaments until one of them cut off his head. His execution would shock Europe and redefine the limits of royal power.
Bornu Reaches Its Peak
Under Mai Ali ibn Umar, the Bornu Empire around Lake Chad reached its greatest extent, controlling Saharan caravan routes from Tripoli to the Hausa cities. Its cavalry wore chainmail, its scholars debated Sufism in Arabic, and its capital Ngazargamu housed tens of thousands of subjects. Bornu's prosperity rested on the trans-Saharan trade in salt, slaves, and horses that linked Africa's interior to the Mediterranean.
Grotius Publishes On the Law of War and Peace
The Dutch jurist Hugo Grotius, writing from exile in Paris, published De Jure Belli ac Pacis, arguing that nations were bound by natural law and mutual obligation even in wartime. International law had a founding document, and the modern idea of human rights one of its earliest blueprints. Diplomats and philosophers would cite Grotius for centuries as the father of their discipline.
Hals Paints the Laughing Cavalier
The Haarlem portraitist Frans Hals, working with rapid slashing brushstrokes that looked like mistakes until you stepped back, produced his most famous likeness: a twenty-six-year-old officer with a curled mustache and a smirk rather than a laugh. Dutch Golden Age portraiture had found its swagger, and Hals had demonstrated that paint applied with bravado could capture personality more vividly than any careful glaze.