America - still a young country by world standards - began as an experiment in self-government. This collection includes stories of America's people as they follow a path of "life, liberty and the pursuit of happiness."
Since it became America's capital city, circa 1800, Washington City had slaves. This compendium includes laws impacting slavery in the District.
This image appears in "A Picture of Slavery, for Youth," by Jonathan Walker. It depicts events occurring in America.
This letter, dated the 4th of April 1864, reflects President Lincoln's personal view of slavery.
Slave owners would pay rewards to anyone who helped recover fugitive slaves.
Snafu Shelton describes his experience during the battle of Pelelieu
Throughout his presidency, Abraham Lincoln spent time at a retreat known as "Soldiers' Home.
This drawing depicts a cross section of the Solid Rocket Motor which was in use at the time of the Challenger disaster.
Eroded O-rings caused the loss of the space shuttle Challenger. This image depicts how hot gasses were not kept away from the shuttle's fuel during la...
When technicians are checking whether the O-rings are properly seated, on the space shuttles Solid Rocket Motor, they check for potential leaks.
During the era of shuttle missions, each shuttle launch included two solid rocket boosters (SRB) which helped to fuel the first minutes of flight.
This drawing depicts a solid rocket booster (at the top of the image) and its various segments and joints.
Amidst the Spanish-Flu Pandemic, which impacted the world between 1918-1919, political cartoonists try to find a little humor despite all the bad news...
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