In February 1962--just nine months after President John F. Kennedy called for the U.S. to put a man on the moon before 1970--Mercury astronaut John Glenn became the first American to orbit the Earth.
In 1869, John Wesley Powell defied the myth of the Colorado River's invincibility and led the first expedition to navigate through the Grand Canyon.
Details of her life remain sketchy, and the time and place of her death are still debated, but the young Indian woman who assisted Meriwether Lewis and William Clark on their great journey west has a secure place in history.
Long March of Lewis and Clark
Its mission over, the Corps of Discovery disbanded and its members sought their own destinies. Some of them passed from the historical record, but others had adventures that made their experiences with Lewis and Clark seem almost tame by comparison.
Known as 'Lying George' for his many false strikes, George Washington Carmack and two Indian friends found a real nugget in 1896 that set off a fabled gold rush in Canada.
Edmund Halley, best known for his 17th century prediction of the 76-year frequency of the cosmos' most famous comet, made scientific contributions far beyond astronomy.
Take a ride on Isambard Kingdom Brunel's short-lived Atmospheric Railway and learn why it failed.
Isambard Brunel's railway was among his greatest engineering successes and established him as one of Victorian Britain's brightest lights--one that continue to shine and inspire today.