German Empire (1848–1849): The Forgotten First Attempt to Unite Germany
Empire of Vietnam (1945): Complete History of Vietnam’s Short-Lived Imperial Government
Byzantine Empire: The Complete History of the Roman Empire in the East

Akwamu Empire: The Complete History of a Powerful West African Kingdom
Akkadian Empire: Complete History of the World’s First Great Empire
Kingdom of Kush: The Complete History of Ancient Nubia, Its Pharaohs, Pyramids, Wars and Forgotten Civilization
Kanem–Bornu Empire: The Complete History of Africa's Longest-Lived Empires
History of the Roman Empire: The Complete Story of Rome's Rise, Glory, and Fall
Mansa Musa: The Complete History of One of the Richest Rulers in History