When an Empire Withdrew from an Unwinnable War

Hadrian's Retreat From Parthia Drew Fierce Criticism—and Opened the Door to a Better Roman Future

Ending wars has always been hard for great powers. Hadrian knew this. In 117 A.D., the new Roman emperor decided to withdraw his forces from an unwinnable war against the Parthian Empire.

Hadrian had inherited the conflict with Parthia—a large empire centered in what is now Iran—from Trajan, his imperial predecessor. Trajan’s generals resisted Hadrian’s withdrawal so forcefully that the emperor feared he might lose both his crown and his life. His ending of the war brought historical condemnation upon him for centuries.

It also was a decision that made Rome stronger.

The …

Complacency—Not Hubris—Is What Killed the Roman Republic

Over the Years, Democratic Norms Quietly Eroded, Not Unlike in Today's America

Representative democracies have wildly different life expectancies, but they tend not to live long.

Democratic governments have existed for more than 2,500 years, but most democracies have historically failed to survive …

Why I’m Staying in Rome, Even While It Crumbles 

A British Novelist Will Remain in the Eternal City Because of What Its Past Can Teach About Surviving the Present

When I tell Romans I have been a resident of their city for the last 16 years and have no desire to live anywhere else, they’re often a little baffled. …

Women Rocked the Ancient World—But Ruling It Was Harder

Nefertiti, Cleopatra, and Hatshepsut Commanded Empires and Flipped Gender Roles While Pushing Against the Patriarchy

Cleopatra shattered the glass ceiling of power in ancient Egypt. Boudica, the fearsome first-century Celtic Iceni queen, “leaned in” by leading a bloody uprising against the occupying Roman army.

But …

How Fishing Created Civilization

From Nile River Catfish to Anchovies in the Andes, Great Empires Were Built on Harvesting the Sea

Of the three ancient ways of obtaining food—hunting, plant foraging, and fishing—only the last remained important after the development of agriculture and livestock raising in Southwest Asia some 12,000 years …

How Societies Are Defined by the Segmentation of Time

While There's an Astronomical Basis for Years and Days, Most Temporal Units Are the Product of Language and Culture

Why does an hour last 60 minutes? Why does a minute last 60 seconds? What are “minutes” and “seconds,” really? A minute is just the duration you arrive at if …