1816
Year Without a Summer
Tambora's ash veiled the sun across the Northern Hemisphere. Snow fell in June in New England; crops failed from Ireland to China; typhus and famine stalked Europe. Mary Shelley, trapped by rain in a Swiss villa, wrote Frankenstein. Turner painted sunsets of impossible color. The volcano had rewritten the weather and, accidentally, the century's literature.
Shaka Becomes Zulu Chief
On the death of his father, Shaka - an illegitimate son trained in the techniques of a neighboring warlord - became chief of a small Nguni clan called the Zulu. Within a decade his short stabbing spear and disciplined impis would remake southern Africa in a cataclysm his enemies called the mfecane, the crushing.
Argentine Independence
In a rented house in the Andean town of Tucuman, delegates from the United Provinces of the Rio de la Plata declared themselves free of Spain. The new country had no borders, no president, and a half-dozen civil wars ahead. But from that hot afternoon dates the republic of Argentina.
Stethoscope Invented
In a Paris hospital, Rene Laennec rolled a sheet of paper into a tube to listen to a stout woman's heart. The tube worked. He refined it into a wooden cylinder and published his findings. Doctors, for the first time, could hear inside a living body without touching it. Laennec's instrument transformed diagnosis and remains, two centuries later, the most recognizable symbol of the medical profession.