A truly incredible secret tunnel has just been discovered under Diocletian's Palace in the very heart of Split.

Splitting up an empire purposefully isn’t common in the annals of world history, but Diocletian recognized that the Roman Empire was simply too big to rule effectively as one person.So, he ...

The tetrarchy fell apart shortly after Diocletian's abdication in A.D. 305, and after various augusti and caesars battled for power, the empire reunited when Constantine I defeated his co-rulers ...

When you hear Diocletian's Palace, you might picture a castle with halls to tour and works of art to enjoy, but you'd be mistaken. Back in the fourth century, this palace was created as a fortress ...

Martyred in 303 during the Diocletian persecution, Sts. Ciriaco and Paula are now honored as the patron saints of Málaga.

The Roman empire began in 27 B.C.E. when Augustus Caesar declared himself as the first Roman emperor. The official date of ...

The Atlantic covers news, politics, culture, technology, health, and more, through its articles, podcasts, videos, and flagship magazine.

In 301 A.D., the Emperor Diocletian made a bold but ultimately unsuccessful bid to address the inflation that was rampaging across the eastern half of the divided Roman Empire.