What do you think was the greatest empire in history? Furthermore

Largest Empires In History - WorldAtlas

Some of History's Greatest Empires, by Daniel G. Jennings, Lessons from History

Fall of the Sassanid Empire: The Arab Conquest of Persia 633-654 CE

The world in the year 1920, in a Gunpowder Empires achieving modernization earlier alternative history scenario (with lore in the comment section) : r/imaginarymaps

This Is The Most Powerful Empire In History

What was the greatest empire in world history? - Quora

Byzantine Empire - Wikipedia

What were the most inspiring empires in world history? - Quora

READ: What is an Empire (article)

Top 10 Largest Empires in World History - HubPages

Some of History's Greatest Empires, by Daniel G. Jennings, Lessons from History

Roman Empire - World History Encyclopedia

Pages with maps from an encyclopedia in my European Imperial Federation Timeline : r/imaginarymaps

Largest Empires in History, Overview & List - Video & Lesson Transcript

What was the greatest empire in world history? - Quora