Precedentthe patterns history keeps Start the walk →
Entry 91 of 240Pandemic

The Plague of Justinian

541 CE/Eastern Mediterranean/Byzantine Empire
Today The eastern Roman Empire (capital Constantinople)Span Byzantine Empire · 4th–15th c. CE

Just as the eastern Roman emperor Justinian was reconquering Italy and North Africa — nearly restoring the old Roman world — bubonic plague swept his empire, killing perhaps a third of its people and gutting its armies and treasury. The reconquest collapsed, and with it the last real chance to reunite the Roman Mediterranean. A pandemic had quietly redrawn the map of Europe, and demography had overruled strategy.

◆ Worth knowingThis was history's first recorded bubonic plague — the same disease as the later Black Death — and its dead so overwhelmed Constantinople that bodies were reportedly stacked inside the towers of the city walls.
◆ The mechanismPandemic

A pathogen spreads through a population and reshapes its demography, economy, and beliefs at once.

Also: Demographic shock & recovery · Imperial overstretch

This is one stop on a walk through the whole human story, in order.

Precedent runs from 9500 BCE to the present in 240 short entries, a few a day. Under each one is the mechanism it's an instance of, and every earlier time you've walked past it. Free, no account needed.

Begin at 9500 BCE → Already walking? Open Precedent and you'll pick up where you left off.