Tetrarchy: Did you mean...?

Galatia was the most long-lasting and powerful Celtic settlement outside of Europe. It was the only kingdom of note to be forged during the Celtic invasions of the Mediterranean in the 4th and 3rd centuries BCE. From its foundation, Galatia...

Explore the world of early Christianity through this 10-map collection, tracing the transformative journey of the Roman Empire as it embraced a new faith. Begin with the Roman Empire under Augustus (r. 27 BCE to 14 CE), setting the stage...

The period from Augustus (reign 27 BCE-14 CE) to Diocletian (reign 284-305 CE) marks the consolidation and transformation of Roman imperial rule across nearly three centuries. Emerging from the collapse of the Republic, Augustus established...