Between 1861 and 1865, the clash of the greatest armies the Western hemisphere had ever seen turned small towns, little-known streams, and obscure meadows in the American countryside into names we will always remember. In those great battles, those streams ran red with blood-and the United States was truly born.

『tertian stack(ターシャン・スタック)』や『width（ウィズ）』をご存知ですか？

North America was settled by people with distinct religious, political, and ethnographic characteristics, creating regional cultures that have been at odds with one another ever since. Subsequent immigrants didn't confront or assimilate into an "American" or "Canadian" culture, but rather into one of the 11 distinct regional ones that spread over the continent each staking out mutually exclusive territory. In American Nations, Colin Woodard leads us on a journey through the history of our fractured continent....

What is life? What is my place in it? What choices do these questions obligate me to make? More than a half-century after it burst upon the intellectual scene - with roots that extend to the mid-19th century - Existentialism's quest to answer these most fundamental questions of individual responsibility, morality, and personal freedom, life has continued to exert a profound attraction.

With this exciting and historically rich six-lecture course, experience for yourself the drama of this dynamic year in medieval history, centered on the landmark Norman Conquest. Taking you from the shores of Scandinavia and France to the battlefields of the English countryside, these lectures will plunge you into a world of fierce Viking warriors, powerful noble families, politically charged marriages, tense succession crises, epic military invasions, and much more.

型破りなスケールと斬新な構成によって，西洋音楽史を塗り替えてしまった「第九」．ベートーヴェンの音楽とシラーのテキストが創り上げる強烈なメッセージ性ゆえに，音楽を超え社会に様々な影響を与えると共に時代の流れに翻弄され，数奇な運命を辿った．

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.

From the 17th to 18th centuries, bold thinkers cast off the authority of ancient traditions and embraced reason as the primary tool for understanding the world. These rationalists, or early modern philosophers, included René Descartes, Baruch Spinoza, and Gottfried Wilhelm Leibniz—visionaries whose answers to profound questions remain relevant today. Early Modern Philosophy: Descartes and the Rationalists covers the key philosophers of this period in 12 fascinating half-hour lectures, presented by award-winning teacher James D. Reid, Professor of Philosophy at Metropolitan State University.

古代から中世へ，一大転換期を舞台にした思想劇－キリスト教の基礎を据え，正統と異端を産み落とした教義論争史にわけいる．