The British Empire comprised a bewildering collection of colonies, dominions, protectorates, and mandated possessions that spanned the planet. This was the largest empire in world history, at its peak ruling over more than 400 million people and covering almost one-quarter of the total land mass of the Earth.

The creation of the Union of Soviet Socialist Republics (USSR) in 1922 was one of the defining events of the 20th century. This new federation, created to embody the ideals of communism and the notion of rule by the people, was intended to be different from any other nation in the world. This utopian vision inspired people around the world, and soon, communism became an international movement. However, the history of the Soviet Union did not develop in the way its originators envisaged.

The Roman Catholic Inquisition was one of the most controversial organizations in human history. Although it has been painted in a negative light, the Inquisition was too broad in scope to define as simply good or bad. It was a period where conflict and bloodshed were inevitable. It was a time where war, famine, plague, and poverty were common factors of human life. From the 1180s to the 1830s, the Inquisition was the judicial arm of the Catholic Church. Created to root out and punish heretics within the Catholic faith, the Inquisition became an institution that would carve its name into history.

Rome is a city of myth and legend. The Eternal City, the city of the seven hills, the sacred city, the caput mundi, the center of the world, Roma, Rome, by any of her many names is a city built of history and blood, marble and water, war and conquest. From legendary beginnings, a city rose from the swamp surrounded by the seven hills and split by the Tiber River. Built and rebuilt, a sacred republic and a divine empire, blessed by a thousand gods and by One, the story of her rise and fall has been told and retold for a thousand years and is still relevant in today's world, as echoes of her ancient glory have shaped our culture, laws, lifestyle, and beliefs in subtle and pervasive ways.

The Industrial Revolution, which took place in Great Britain between the middle of the 18th century and the middle of the 19th, transformed British industry and society and made Great Britain the most powerful nation in the world. The Industrial Revolution didn’t happen due to one, single factor but rather to a number of separate, yet, related developments which interacted to change the world profoundly and completely. Improvements in the production of iron allowed the construction of efficient, reliable steam engines.