The 13 chapters of The Art of War, each devoted to one aspect of warfare, were compiled by the high-ranking Chinese military general, strategist, and philosopher Sun-Tzu. In spite of its battlefield specificity, The Art of War has found new life in the modern age, with leaders in fields as wide and far-reaching as world politics, human psychology, and corporate strategy finding valuable insight in its timeworn words.

The Roman gladiator has long been a figure of fascination. Portrayed frequently in fine art and popular culture alike, the gladiator is both a real part of history and a legend of a romanticized past. We know that these men entertained Roman audiences by fighting in dangerous and often deadly games. But who were the gladiators? What were their lives like? And why do they continue to have such a strong hold on our imagination, centuries after the fall of the Roman Empire?

The Mongol army led by Genghis Khan subjugated more lands and people in 25 years than the Romans did in 400. In nearly every country the Mongols conquered, they brought an unprecedented rise in cultural communication, expanded trade, and a blossoming of civilization.

In 1992, the deadliest year in Chicago’s history, seven-year-old Dantrell Davis was shot and killed in front of his elementary school inside the public housing complex Cabrini-Green. What happened to Dantrell led to a truce among Chicago’s gangs, but it also ignited a national panic about poverty and violence in America’s cities. Dantrell’s name would soon be used to demolish all of Chicago’s high-rise public housing, displacing tens of thousands of low-income families.

Toys and games have long been a part of childhood, but the 20th century saw the rise of an entire industry devoted to the business of play, one that would constantly evolve over the years. In the six lectures of The History of Toys, 1900 to the Present, consultant and toy industry expert Chris Byrne—also known as The Toy Guy®—will take you on a journey through the world of toys from the Edwardian era to our current moment. Beginning with the birth of the mass-market toy industry, you’ll trace the many transformations of toys and our shifting theories of play and childhood development.