Death serves as the horizon against which our lives unfold and shapes the choices we make about how to live. In fact, the knowledge of mortality has inspired much of human activity—religion, philosophy, music and visual arts, even scientific endeavors and monumental architecture have all been driven by our understanding of death. Whether viewed as a transition to paradise or punishment, an ultimate separation or ecstatic joining, the end of existence...

Probe deeper into Dubrovnik's remarkable political system, highlighting its ingenious diplomatic strategies and progressive policies, such as a free public health service. Visit the sites connected to this history, including the Rector's Palace, the 15th-century orphanage, and the still-operating pharmacy founded in 1317, and enjoy the majesty of the city's diverse architecture.

Learn about the spiritual revolution of King Akhenaten, and the monuments that bear witness to it. Begin with a look back at an earlier necropolis that influenced Akhenaten, that of Beni Hasan, containing some of the most beautiful painted tombs in Egypt. Continue to the capital city of Amarna, the setting for Akhenaten's religious reformation that focused on the sole worship of the sun god Aten.

A TV show about the Middle Ptolemies might be called "Lifestyles of the Rich and Murderous." With few exceptions, the members of this dysfunctional dynasty were violent, debauched, and generally neglectful of the country they ruled. The Egyptians hated them and frequently rebelled, forcing some to flee for their lives. With each Ptolemy, Egypt sank deeper, making a return to greatness impossible.

Expand on--and even challenge--what you've learned about the Black Death and the medieval period with After the Plague, a 24-lecture course on the impact of the bubonic plague across the continent. With expert Simon Doubleday, professor of history at Hofstra University, explore the trajectory and after-effects of one of the deadliest pandemics in world history.

Delve into some of the most infamous, ghastly, and mysterious crimes of the last hundred-odd years in Crimes of the Century: A Selective History of Infamy. Taught by Professor Richard B. Spence of the University of Idaho, this enthralling course gives you a dozen case studies of murders most foul. From an intriguing Irish domestic murder to a world-shaking political assassination, survey some of the most heinous crimes in modern history.

In the old-style analog telephone system, voltage increased and decreased across the wires, corresponding to the human voice signal. But in a digital system, that all changes. Learn how the human voice is changed into binary values, sent over the system, and then converted back into volts with the voltage applied to the speaker in the phone handset. The human ear takes it from there.

After Solomon's reign, grasp how the kingdom of Israel divided into a Northern Kingdom and the Southern Kingdom of Judah. Observe how the Northern Kingdom became dominant under the powerful King Omri, creator of the capital of Samaria, excavated in the early 20th century. Learn of the divisive rule and tragic fate of Omri's son, Ahab, and how the kingdom fell to aggression by the Assyrian Empire.

Unlike the well-founded theories you've studied so far in this series, turn to one that is as-yet-unproven -- but mindboggling in its implications. Cosmic inflation proposes that a period of explosive expansion occurred in the first instants of the Big Bang. This startling idea accounts for two puzzling features of today's universe: the observed uniformity of matter and the flat geometry of space.

Logic is intellectual self-defense against such assaults on reason and also a method of quality control for checking the validity of your own views. But beyond these very practical benefits, informal logic—the kind we apply in daily life—is the gateway to an elegant and fascinating branch of philosophy known as formal logic, which is philosophy’s equivalent to calculus. Formal logic is a breathtakingly versatile tool. Much like a Swiss army...