Africa is the continent where the first humans were born. They explored the vast land and produced the first tools. And although we migrated from that continent, we never completely abandoned it. From the beginning of time, humans lived and worked in Africa, leaving evidence of their existence in the sands of the Sahara Desert and the valleys of the great rivers, such as the Nile and the Niger. Some of the earliest great civilizations were born there, and they give us an insight into the smaller kingdoms of ancient Africa.

Where did the first signs of civilization appear in the ancient world? When did people start to transition from the nomadic life of hunters and gatherers to living in the first urbanized settlements? Who was the first emperor in history? Which empire was the strongest and mightiest, and for how long? Where did the title King of the Universe come from, and who was the True King? All these answers are hidden in the ancient history of the Fertile Crescent, and now, they are unveiled to you in our comprehensive and captivating guide to the ancient civilizations of the Near East.

It would be hard if not outright impossible to overstate the impact Roman Emperor Constantine I had on the history of Christianity, Ancient Rome, and Europe as a whole. Best known as Constantine the Great, the kind of moniker only earned by rulers who have distinguished themselves in battle and conquest, Constantine remains an influential and controversial figure to this day. He achieved enduring fame by being the first Roman emperor to personally convert to Christianity.

The Byzantine Empire was the heir to two great cultures that cradled and nurtured European civilization: Greece and Rome. Byzantium was a strong, organized, highly effective, and adaptable civilization for most of its long history. It owed its success in no small part to its military, which, in contrast to the feudal armies of Western Europe and the tribally based forces of the Middle East, operated with a high level of discipline, strategic prowess, efficiency, and organization. The most famous of the foreign units was without question the Varangian Guard.

World War I, also known in its time as the "Great War," or the "War to End all Wars," was an unprecedented holocaust in terms of its sheer scale. Fought by men who hailed from all corners of the globe, it saw millions of soldiers do battle in brutal assaults of attrition which dragged on for months, with little to no respite. Tens of millions of artillery shells and untold hundreds of millions of rifle and machine gun bullets were fired in a conflict that demonstrated man's capacity to kill each other on a heretofore unprecedented scale.

Most historians credit the city-state of Florence as the place that started and developed the Italian Renaissance, a process carried out through the patronage and commission of artists during the late 12th century. If Florence is receiving its due credit, much of it belongs to the Medicis, the family dynasty of Florence that ruled at the height of the Renaissance. The dynasty held such influence that some of its family members even became pope.

Despite the pope’s aversion to temporal glory, his authority tended to fill the vacuum in the West left when the last Western Roman emperor, Romulus Augustus, was deposed in 476. The pope would continue to do so until 800, when Charlemagne would allow himself to be crowned Emperor of the West in Rome upon receiving his crown from Pope Leo III. This created modern Europe and was the culmination of two centuries of papal policy aimed at securing its independence from the Byzantine Empire in Constantinople. 

Modern perceptions of ancient Greece are almost always based on Athens and Sparta, which is why other city-states and other military units besides the hoplites have been overlooked for thousands of years. For this reason, Greek cavalry forces - including their composition, purpose, techniques, equipment, and developments - are still not very well understood when compared with their naval or infantry counterparts.

In the second book of the Army of the Potomac Trilogy, Bruce Catton - one of America's most honored Civil War historians - once again brings the great battles and the men who fought them to breathtaking life. As the War Between the States moved through its second bloody year, General Ambrose Burnside was selected by President Lincoln to replace the ineffectual George "Little Mac" McClellan as commander of the Union Army. But the hope that greeted Burnside's ascension was quickly dashed in December 1862 in the wake of his devastating defeat at Fredericksburg.

A history of the Tatar peoples covers a huge expanse of territory, time, and the rise and fall of many Tatar communities. As such, they played a role in Europe, Asia, and the Middle East over several centuries, and from Genghis Khan to Ivan the Terrible and Josef Stalin, some of history’s most infamous tyrants have played a key role in this story. Crucially, the history of the Tatars is one that seems to take place at the fringes of the great empires.

Africa is the continent where the first humans were born. They explored the vast land and produced the first tools. And although we migrated from that continent, we never completely abandoned it. From the beginning of time, humans lived and worked in Africa, leaving evidence of their existence in the sands of the Sahara Desert and the valleys of the great rivers such as the Nile and the Niger.

In late September 1863, the Confederates began laying siege to the Union Army of the Cumberland around Chattanooga. It would be their last gasp for supremacy in the West. Following the devastating Union defeat at the Battle of Chickamauga on September 20, the army and its shaken commander, General William S. Rosecrans, began digging in around the city and waiting for reinforcements to arrive.

The history of China is complex - perhaps, more complex than that of other nations. The ethnic groups that compose China go back to prehistoric times, and each group lent its own color to the enormous nation. It is not like a diluted mixture of all its cultures; rather, it is a collage. Yet, there are immutable elements still present today. Rice originated in China, and so did stir-frying. 

Sulla had become renowned in Rome as a general during the Jugurthine, Social, and Mithridatic Wars, but naturally he is now remembered for the gruesome acts committed during his tenure as Rome’s first lifelong dictator. Sulla’s unprecedented period of one-man rule is viewed by many historians as a means of re-establishing peace and order in Roman politics while safeguarding the Republican system from abuse by powerful individuals.

On June 22, 1941, Nazi Germany launched Operation Barbarossa, the invasion of the Soviet Union. In the time since the end of the war, the world has become familiar with the number of deaths sustained by the Soviet Union (also known as the USSR) during the conflict - 20 million. And that’s likely low, given the size of the country, census-taking at the time, and the damage done to the bureaucracy of the country.