From Napoleon's revolutionary campaigns to the way insurgency, terrorism, and nuclear weaponry have defined the nature of warfare in the 21st century, the results of military strategy have changed the course of history. These 24 thought-provoking lectures give you an inside look at both the content and historical context of the world's greatest war strategists. From the triremes and hoplites of ancient Greece to the Special Forces in 21st-century Afghanistan, strategy is the process by which political objectives are translated into military action.

This fresh and challenging inquiry into human societies takes a deep look at the effects and roles of war. As the most complex of all human endeavors, warfare - from ancient to modern - has spurred the growth of essential new technologies; demanded the adoption of complex economic systems; shaped the ideology and culture of nations; promoted developments in art and literature; and spread faith across the globe.

The ancient world has cast a long shadow, influencing our customs and religious beliefs, our laws, and the form of our governments. It has taught us when and how we make war or pursue peace. It has shaped the buildings we live and work in and the art we hang on our walls. It has given us the calendar that organizes our year and has left its mark on the games we play.

Touched off by a terrorist act in Bosnia and spreading all too quickly beyond the expectations of those who were involved, World War I was an unprecedented catastrophe with a ghastly cost. After this first "total war"-the first conflict involving entire societies mobilized to wage unrestrained war, devoting all their wealth, industries, institutions, and the lives of their citizens to win victory at any price - the world itself would never be the same.

The Mongol Empire was the largest empire the world has ever seen, forged by conquests across Eurasia in the 13th and 14th centuries. Yet despite the unparalleled brutality of the Mongols, they played a key role in launching civilization’s evolution into the modern world. In 24 half-hour lectures delivered by award-winning teacher and historian Craig Benjamin of Grand Valley State University, explore the paradox of the Mongols’ extreme barbarity combined with their enlightened religious attitudes and respect for high civilization, in The Mongol Empire.   

The Roman Empire: From Augustus to the Fall of Rome traces the breathtaking history from the empire’s foundation by Augustus to its Golden Age in the 2nd century CE through a series of ever-worsening crises until its ultimate disintegration. Taught by acclaimed Professor Gregory S. Aldrete of the University of Wisconsin-Green Bay, these 24 captivating lectures offer you the chance to experience this story like never before, incorporating the latest historical insights that challenge our previous notions of Rome’s decline.  

During the 229-year period from 1485 to 1714, England transformed itself from a minor feudal state into what has been called "the first modern society" and emerged as the wealthiest and most powerful nation in the world. Those years hold a huge and captivating story. The English survived repeated epidemics and famines, one failed invasion and two successful ones, two civil wars, a series of violent religious reformations and counter-reformations, and confrontations with two of the most powerful monarchs on earth, Louis XIV of France and Philip II of Spain.

Following the surge of interest and pride in Celtic identity since the 19th century, much of what we thought we knew about the Celts has been radically transformed. In The Celtic World, discover the incredible story of the Celtic-speaking peoples, whose art, language, and culture once spread from Ireland to Austria. This series of 24 enlightening lectures explains the traditional historical view of who the Celts were, then contrasts it with brand-new evidence from DNA analysis and archeology that totally changes our perspective on where the Celts came from.

The Roman Republic is one of the most breathtaking civilizations in world history. Between roughly 500 BCE to the turn of the millennium, a modest city-state developed an innovative system of government and expanded into far-flung territories across Europe, Northern Africa, and the Middle East. This powerful civilization inspired America's founding fathers, gifted us a blueprint for amazing engineering innovations, left a vital trove of myths, and has inspired the human imagination for 2,000 years.

Most of us have a limited understanding of the powerful role economics has played in shaping human civilization. This makes economic history - the study of how civilizations structured their environments to provide food, shelter, and material goods - a vital lens through which to think about how we arrived at our present, globalized moment. Designed to fill a long-empty gap in how we think about modern history, these 48 lectures are a comprehensive journey through more than 600 years of economic history.

Throughout history, women have played integral roles in family, society, religion, government, war - in short, in all aspects of human civilization. Powerful women have shaped laws, led rebellions, and played key roles in dynastic struggles. Some were caught up in forces beyond their control, while others manipulated and murdered their way to the top. However, unearthing their stories from the historical record has been a challenge, with the ordinary difficulties of preserving information across the generations increased by centuries of historical bias and gendered expectations.

Language defines us as a species, placing humans head and shoulders above even the most proficient animal communicators. But it also beguiles us with its endless mysteries, allowing us to ponder why different languages emerged, why there isn't simply a single language, how languages change over time and whether that's good or bad, and how languages die out and become extinct.

Mesopotamia is the ancient name for the region that is now Iraq, a remarkably advanced civilization that flourished for two-thirds of the time that civilization has existed on Earth. Mesopotamians mastered irrigation agriculture; built the first complex urban societies; developed writing, literature, and law; and united vast regions through warfare and diplomacy. While civilizations like Greece and Rome have an unbroken tradition of written histories, the rich history of Mesopotamia has only been recently rediscovered, thanks to the decipherment of Mesopotamia's cuneiform writing less than 200 years ago.

What is reality? Ask yourself whether you can actually know the answer, much less be sure that you can know it, and you've begun to grapple with the metaphysical and epistemological quandaries that have occupied, teased, and tormented modern philosophy's greatest intellects since the dawn of modern science and a century before the Enlightenment.

The deep-seated origins and wide-reaching lessons of ancient myths built the foundation for our modern legacies. Explore the mythologies of Europe, the Americas, Asia, Africa, and the Middle East. Learn what makes these stories so important, distinctive, and able to withstand the test of time. Discover how, despite geographical implausibilities, many myths from across the oceans share themes, morals, and archetypes.