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The current view of science is that Earth is around 4.6 billion years old. The first four billion years of its development are known as the Precambrian period. For the first billion years or so, there was no life on Earth, and then the first single-celled life-forms, early bacteria and algae, began to emerge. It’s unknown where they came from or even if they originated on this planet at all, but this gradual development continued until suddenly (in relative geological terms), more complex forms of life began to emerge.

The Weimar Republic has become a byword for a failed, tragic, political experiment. The official period of its existence, 1919-1933, marked the interwar years in Germany and their related uncertainty, chaos, and the state’s ultimate collapse. Historians have found the roots of Nazism embedded in the Weimar years and that in the final analysis, Weimar politicians voluntarily handed over power to the man who wrought destruction on an epic scale, Adolf Hitler.

The 1920s in the United States were known as the "Roaring '20s" and the Jazz Age, a time in the nation that glorified hard and fast living. Nobody personified the age or wrote so descriptively about it better than F. Scott Fitzgerald (1896-1940), whose name became synonymous with the times after penning the epic The Great Gatsby.

The Japanese had to deal with large numbers of Filipino and American soldiers who had surrendered after a lengthy defense in the Bataan peninsula, but they were not prepared for so many prisoners of war because their own military philosophy emphasized rigid discipline and fighting until the end. They could not imagine a situation in which Japanese soldiers would willingly surrender, so they assumed that no other combatants would do so either.

When scholars study the history of the ancient Near East, several wars that had extremely brutal consequences (at least by modern standards) often stand out. Forced removal of entire populations, sieges that decimated entire cities, and wanton destruction of property were all tactics used by the various peoples of the ancient Near East against each other, but the Assyrians were the first people to make war a science. When the Assyrians are mentioned, images of war and brutality are among the first that come to mind, despite the fact that their culture prospered for nearly 2,000 years.

Tecumseh’s reputation among Americans has been both the most unique and anomalous. As the leader of the Shawnee, Tecumseh was the most famous Native American of the early 19th century, and he attempted to peacefully establish a Native American nation east of the Mississippi River in the wake of the American Revolution. While Native Americans, especially in the “Old Northwest”, understood and recognized their own, long-established territories and those of other tribes, these boundaries and territories were ignored and unappreciated by the incoming settlers.

When one hears the term “Victorian”, many images come to mind. For some, the term conjures up visions of lace and gloves and delicate fans. Others think of tight corsets and even tighter morals. Others, swayed perhaps by one too many British costume dramas, envision gentle elegance and long-lost beauty. Naturally, few people think of multiple dead bodies cast about in the streets or dark bedrooms, most mutilated to a shocking degree, and yet, those tragic images played a significant role not only in late Victorian London, but ever since.

In 1968, biologist John Calhoun began an experiment at the National Institute of Mental Health in Maryland. Calhoun was interested in discovering the factors that drove and limited rodent population growth; he had joined the Rodent Ecology Project in Baltimore in 1946, and he and other members of the project had become interested in understanding how to reduce rodent pests in America’s cities without the use of poison.

The Roman army is one of the most famous fighting forces in history. Through its power and prowess, a once obscure Italian city forged an empire that encircled the Mediterranean and covered half of Europe. The physical remains of its presence can be traced from the mountainous borders of Scotland to the arid deserts of Egypt, but its legacy is far greater and more enduring, as Rome's influence continues to shape the political, legal, and cultural landscape of Europe to this very day.

"To boldly go where no man has gone before" was a phrase made popular by Gene Rodenberry in a science fiction setting, but it was certainly the creed of countless explorers during the Age of Discovery and afterwards. In fact, as recently as the mid-18th century, a young sailor named James Cook determined to go "farther than any man has been before me, but as far as I think it is possible for a man to go." And unlike so many others who tried, he did just that.

Before the Mongols rode across the steppes of Asia and Eastern Europe, the Cumans were a major military and cultural force that monarchs from China to Hungary and from Russia to the Byzantine Empire faced, often losing armies and cities in the process. The Cumans were a tribe of Turkic nomads who rode the steppes looking for plunder and riches, but they rarely stayed long after they got what they wanted. From the late 9th century until the arrival of the Mongols in 1223, there was virtually nothing that could be done to stop the Cumans.

As this all suggests, the story of the Young Turks and the last years of the Ottoman Sultanate is a complex and interesting one. It is the history of a state struggling to survive against seemingly impossible odds, featuring a long battle for the minds and souls of the inhabitants of a declining empire. An empire caught between nationalism and liberal imperialism.

Ellis Island and Angel Island: The History and Legacy of America’s Most Famous Immigration Stations examines how these islands became immigration inspection centers and what life was like for those who landed in each place.

The term robber baron has largely fallen into disuse in the 21st century but there was a time when it was a popular epithet that described the kind of man who, it was believed, built his fortune by taking things belonging to others. The Gilded Age and the dawn of the 20th century are often remembered as an era full of monopolies, trusts, and economic giants in heavy industries like oil and steel. Men like Andrew Carnegie built empires like Carnegie Steel, and financiers like J.P. Morgan merged and consolidated them.

A land of almost 3 million square miles has lain since time immemorial on the southern flank of the planet, so isolated that it remained almost entirely outside of European knowledge until 1770. From there, however, the subjugation of Australia would take place rapidly. Within 20 years of the first British settlements being established, the British presence in Terra Australis was secure, and no other major power was likely to mount a challenge. In 1815, Napoleon would be defeated at Waterloo, and soon afterwards would be standing on the barren cliffs of Saint Helena.

Wahhabism is the most common form of politicized fundamentalist Islam, now most associated with the Islamic State and Al Qaeda and the official religion of Saudi Arabia and Qatar. It is widespread throughout the Islamic world, especially in Pakistan and Afghanistan (where it was the official religion of the Taliban). Together, the Saudi and al-Wahhab families formed a potent alliance, with the Saudis gaining an ideological backing for their small state and the Wahhabis gaining a powerful and increasingly wealthy patron.

In terms of geopolitics, perhaps the most seminal event of the Middle Ages was the successful Ottoman siege of Constantinople in 1453. The city had been an imperial capital as far back as the fourth century, when Constantine the Great shifted the power center of the Roman Empire there, effectively establishing two almost equally powerful halves of antiquity’s greatest empire. The Rise of the Ottoman Empire chronicles the rise of one of history’s most influential empires. You will learn about the rise of the Ottoman Empire like never before.

The pre-modern world, especially the ancient world, is full of many mysteries, riddles, and enigmas. Nearly 2,500 years after the Golden Age of Athens, people across the world today continue to be fascinated by the Ancient Greeks, but the Greeks looked up to the Minoans. Questions persist over the origins of the Minoan civilization, the end of the civilization, and substantial parts of their history, including their religion and buildings. All of this is largely because their written language, known today as “Linear A”, remains undeciphered....

Olaudah Equiano challenged the image of the unconscious African beast with such intellect, philosophical refinement, public presence, and elegant writing that standard British perceptions began to unravel. It is rational to assume that with his emergence as a respected world traveler, abolition of the slave trade was pushed forward by an incalculable number of years. Within his life, Equiano was to become the first Black British politician.

Although the Romans gained the upper hand over Carthage in the wake of the First Punic War, the legendary Carthaginian general Hannibal brought the Romans to their knees for over a decade during the Second Punic War. While military historians are still amazed that he was able to maintain his army in Italy near Rome for nearly 15 years, scholars are still puzzled over some of his decisions, including why he never attempted to march on Rome in the first place.