Roma Eterna - Robert Silverberg

From multiple Hugo and Nebula award winning author Robert Silverberg, Roma Eterna takes an in-depth look at an alternative history in which the Roman Empire survives into the twenty-first century and beyond.
What would happen if Imperial Rome never fell? Roma Eterna, spanning fifteen-hundred years of global history, follows the reign of the Roman Empire from its inception to the present day. Empire continues to expand, creeping across the globe and through the annals of history from the conquest of the Mayans to the first circumnavigational voyage, and finally the attempt of the s to flee Rome's tyranny by escaping to another planet.
Originally published as a series of short stories, Roma Eterna presents a powerful new world written by an endlessly imaginative writer.