Tell us what you think of the flu — do you think there is a significant threat of a major outbreak today like there was in 1918?
Major Walter Reed's discovery in 1900 that mosquitoes spread yellow fever halted an outbreak and led to the disease's eventual eradication.
During World War II, more than a thousand women signed up to fly with the U.S. military as WASPS.
Brothers Wilbur and Orville Wright built a flying machine that made its first flight in Kitty Hawk, North Carolina in 1903.
"The Wizard of Menlo Park," Inventor Thomas Edison, built the first practical light bulb and revolutionized the world.
The internationally famous carnival of delights in New York was the birthplace of the hot dog and the roller coaster.
Postwar New York City and the global economic order told through the story of the World Trade Center.
George Eastman introduced the Kodak and Brownie camera systems and transformed photography into something anybody could do.
Native Alaskans, oil company representatives, environmentalists, politicians, and others tell the story of the 800-mile pipeline.