In the 1950s, an obsessive firearms designer named Eugene Stoner invented the AR-15 rifle in a California garage. High-minded and patriotic, Stoner sought to devise a lightweight, easy-to-use weapon that could replace the M1s touted by soldiers in World War II. What he did create was a lethal handheld icon of the American century.

The great Austrian writer Stefan Zweig confided in his autobiography: “I have a pretty thorough knowledge of history, but never, to my recollection, has it produced such madness in such gigantic proportions.” He was referring to Germany in 1923, a “year of lunacy,” defined by hyperinflation, violence, a political system on the verge of collapse, the rise of Adolf Hitler and the Nazi Party, and separatist movements threatening to rip apart the German nation. Bestselling author Volker Ullrich presents a riveting chronicle of one of the most difficult years any modern democracy has ever faced.

When the United States was founded in 1776, its citizens didn’t think of themselves as “Americans.” They were New Yorkers or Virginians or Pennsylvanians. It was decades later that the seeds of American nationalism—identifying with one’s own nation and supporting its broader interests—began to take root. But what kind of nationalism should Americans embrace? The state-focused and racist nationalism of Thomas Jefferson and Andrew Jackson? Or the belief that the US Constitution made all Americans one nation, indivisible, which Daniel Webster and others espoused?

Few figures in American politics have seen more and said less than Mitt Romney. An outspoken dissident in Donald Trump’s GOP, he has made headlines in recent years for standing alone against the forces he believes are poisoning the party he once led. Romney was the first senator in history to vote to remove from office a president of his own party. When that president’s supporters went on to storm the US Capitol, Romney delivered a thundering speech from the Senate floor accusing his fellow Republicans of stoking insurrection.

The Pax Romana has long been shorthand for the empire’s golden age. Stretching from Caledonia to Arabia, Rome ruled over a quarter of the world’s population. It was the wealthiest and most formidable state in the history of humankind. Pax is a captivating narrative history of Rome at the height of its power. From the gilded capital to realms beyond the frontier, historian Tom Holland shows ancient Rome in all its glory