The international race to develop biological weapons during the 20th century, the challenges scientists faced, and the moral dilemmas posed by their eventual success.
In the Philippines, Army Rangers liberated 513 prisoners of war three years after the Bataan Death March.
The first officially formed regiment of northern black soldiers who fought in the Civil War.
Major Walter Reed's discovery in 1900 that mosquitoes spread yellow fever halted an outbreak and led to the disease's eventual eradication.
President Woodrow Wilson lead America during World War I, created the Federal Reserve, and helped create the League of Nations. Part of the award-winning Presidents collection.
The first around-the-world air race was sponsored to prove that the airplane had a commercial future.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
Accounting for America's most famous inventor and his role in America's future.
After notorious revolutionary leader Pancho Villa's raid on Columbus, New Mexico, General John Pershing and his 150,000 man cavalry set out to get Villa.