On April 30, 1975, the Communist capture of the city of Saigon brought an end to more than 20 years of war in Vietnam. The end of the war reunified a divided nation—and changed the course of global politics, military strategy, and international relations for decades to come.

Boom. On July 16, 1945, a fireball erupted in the sky over a remote desert in New Mexico - and the world changed forever. That fireball was the culmination of a dramatic race to harness the power of the atom itself in order to save the world from Nazi Germany and Imperial Japan....

The period between Bloody Sunday in 1972 and Good Friday in 1998 was one of the most troubled, turbulent, and triumphant periods for the Irish. The island went from financial depression to quietly becoming an economic powerhouse....

A nation is born Lexington, Bunker Hill, Saratoga, Washington, Hamilton, Benedict Arnold. All familiar names, but how did they all fit together? How did merchants, lawyers, farmers, and cobblers come together to defeat the British Empire, its powerful navy, and its Hessian auxiliaries? For that...