‘If a man were called to fix the period in the history of the world, during which the condition of the human race was most happy and prosperous, he would, without hesitation, name that which elapsed from the death of Domitian to the accession of Commodus…The frontiers of that extensive monarchy were guarded by ancient renown and disciplined valour. The gentle, but powerful influence of laws and manners had gradually cemented the union of the provinces. Their peaceful inhabitants enjoyed and abused the advantages of wealth and luxury.’

These are the words of Edward Gibbon, writing in the first volume of his history The Decline and Fall of the Roman Empire. That wealth, that luxury, that peace, had been purchased by the legions of Rome. As Tom Holland writes in his new book PAX, “the capacity of the legions to exercise extreme violence was the necessary precondition of the Pax Romana”. And despite Gibbon’s wistfulness about that happy and prosperous age, that bloodily-won peace was enjoyed by a people very different from ourselves. 

Tom Holland is the author of numerous bestselling books. PAX: War and Peace in Rome’s Golden Age is the third volume of a Roman history which began with Rubicon: The Triumph and Tragedy of the Roman Republic, and Dynasty: The Rise and Fall of the House of Caesar. He was last on Historically Thinking for Episode 139 to discuss his book Dominion: How the Christian Revolution Remade the World. Since then, he has started to podcast in a small way  himself and now The Rest is History–which he co hosts with Dominic Sandbrook–is by some measures one of the the most popular podcast in Britain. Which means that this is like the Chairman of Tesco visiting a small alternative co-op in north Devon that reeks of patchouli, and sells at least 99 products made of hemp.