The Middle Ages were dubbed the 'Dark Ages' almost before they had begun to draw to a close. Ever since then, they have continued to be seen as a time of hardship and oppression, full of popes and crusades. In the second volume of 2,000 Years of Christ's Power, another side of the Middle Ages shines through though: The continual workings of Christ as He built His kingdom through figures such as Thomas a Kempis and John Wycliffe, who lived and struggled during these centuries. This was far from a period of stagnation; rather it was the fire from which the Reformation was kindled.

The Renaissance was a reaction against the attitude of the Middle Ages. And the Reformation was the passionate, divisive argument that grew out of it. Catholics, Calvinists, Lutherans, Anabaptists - our present-day divisions were the front-page headlines of the Reformation. Volume three of 2,000 Years of Christ's Power, in showing the progression of the Reformation era, and the daring bravery of its figures, presents a period of history from which there are many lessons to be learnt - not least of all, the vibrancy of people's lives and the courage with which they faced death.

The Renaissance and Reformation were exciting times of learning and discovery - they pushed the boundaries of accepted thought. The repercussions of this, however, were that they left in their wake a period of universal uncertainty. The centuries-old status quo had been turned on its head. Nothing was stable anymore. Conflict ensued.

The fourth volume of 2,000 Years of Christ's Power spans from the 16th to the 18th century. It presents a time from which English Protestantism, Scottish Presbyterianism, and French Catholicism, to name only a few, were birthed and refined. Perhaps few eras have had such a direct impact on the characteristics of our own period of history.

Steven P. Miller offers a dramatically different perspective: the Bush years, he argues, did not mark the pinnacle of evangelical influence, but rather the beginning of its decline. The Age of Evangelicalism chronicles the place and meaning of evangelical Christianity in America since 1970, a period Miller defines as America's "born-again years." This was a time of evangelical scares, born-again spectacles, and battles over faith in the public square. From the Jesus chic of the 1970s to the satanism panic of the 1980s, the culture wars of the 1990s, and the faith-based vogue of the early 2000s, evangelicalism expanded beyond churches and entered the mainstream in ways both subtly and obviously influential.

Born-again Christianity permeated nearly every area of American life. It was broad enough to encompass Hal Lindsey's doomsday prophecies and Marabel Morgan's sex advice, Jerry Falwell and Jimmy Carter. It made an unlikely convert of Bob Dylan and an unlikely president of a divorced Hollywood actor. As Miller shows, evangelicalism influenced not only its devotees but its many detractors: religious conservatives, secular liberals, and just about everyone in between. The Age of Evangelicalism contained multitudes: it was the age of Christian hippies and the "silent majority," of Footloose and The Passion of the Christ, of Tammy Faye Bakker the disgraced televangelist and Tammy Faye Messner the gay icon. Barack Obama was as much a part of it as Billy Graham.

The Age of Evangelicalism tells the captivating story of how born-again Christianity shaped the cultural and political climate in which millions Americans came to terms with their times.