Diocletian’s Palace belongs to the Common Era — dated here to c. 305 CE at Split, Croatia. Dates mark a scholarly centre of gravity (dedication, completion, or iconic phase), not a single foundation day.
A retired emperor’s fortress-palace that became a living city — residents still inhabit the peristyles.
How it amazes the brain
Limestone and marble, Egyptian sphinxes, and a mausoleum that turned into a cathedral.
Why it counts as a wonder
It never needed a contest ballot to scramble the brain: scale, craft, or sheer improbability is enough.
Urban recycling as wonder: Rome’s retirement home became Split’s downtown.
On dating
CE means years after the traditional birth of Christ. A monument listed as c. 305 CE may have been founded earlier, rebuilt later, or become famous only in one phase. Engineering wonders (dams, tunnels, orbiting labs) are dated to opening or assembly.
This is story 57 of 100 in The Trend Ledger’s illustrated desk on world wonders raised after the birth of Christ — the companions to our BCE series.