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Grade Range:
K-12
Resource Type(s):
Artifacts
Date Posted:
3/28/2016
Before 1954, so-called portable radio receivers used vacuum tubes to receive and amplify signals. The large batteries needed to power most tubes made radios large and heavy. Receivers built with subminiature tubes existed but were expensive. The invention of transistors in 1947 allowed engineers
Grade Range:
K-12
Resource Type(s):
Artifacts
Date Posted:
3/28/2016
Motorola produced the DynaTAC cell phone in 1984 after more than a decade of work in cellular research and technology. The Motorola DynaTAC (an abbreviation of Dynamic Adaptive Total Area Coverage) was the first commercially available portable handheld cell phone. The phone was a 9-inches tall, w
Grade Range:
3-12
Resource Type(s):
Interactives & Media
Date Posted:
3/1/2016
Trace the cultivation, trade, purchase, and consumption of four key drinks from the Merchant Era: tea, chocolate, water, and whiskey.
Grade Range:
8-12
Resource Type(s):
Reference Materials
Date Posted:
3/1/2016
The advertising business shaped the relationship between producers and consumers. Starting with newspapers, advertising financed media in the U.S., ensuring that it all became commercialized. Advertisers defined the benefits of consumption for Americans, linking products to personal improvement,
Grade Range:
8-12
Resource Type(s):
Reference Materials
Date Posted:
3/1/2016
How does American business affect you? How and why has it changed since the United States began? Come explore stories of business men and women who have changed the world. See hundreds of intriguing objects that illustrate transformations in society. Think about how Americans have mixed capitalis
Grade Range:
K-12
Resource Type(s):
Artifacts
Date Posted:
9/17/2015
Alfred Vail made this key, believed to be from the first Baltimore-Washington telegraph line, as an improvement on Samuel Morse's original transmitter. Vail helped Morse develop a practical system for sending and receiving coded electrical signals over a wire, which was successfully demonstrated
Grade Range:
Resource Type(s):
Artifacts
Date Posted:
9/10/2015
Abraham Lincoln came to understand that to achieve a lasting peace, slavery must end. He had always opposed slavery, but had never sided with abolitionists who called for its immediate end. Lincoln had sought solutions that would make slavery gradually fade from white society—limit its location
Grade Range:
9-12
Resource Type(s):
Interactives & Media, Lessons & Activities
Date Posted:
6/19/2015
Abraham Lincoln is typically portrayed as a gaunt, bearded man, both thoughtful and troubled. The story that goes along with this image is as familiar to Americans as any children’s fable. He was born in a log cabin. He became the 16th president. He freed the slaves and saved the Union. He was
Grade Range:
K-12
Resource Type(s):
Artifacts, Primary Sources
Date Posted:
3/10/2015
The U.S.D.A. Forest Service introduced Woodsy Owl in 1971 as an anti-litter and anti-pollution symbol to promote wise use of the environment. The campaign, which continues today, is primarily aimed at school-age children and uses slogans such as “Give a Hoot! Don’t Pollute” and “Lend a Ha
Grade Range:
K-12
Resource Type(s):
Artifacts, Primary Sources
Date Posted:
3/10/2015
This bus carried rural children to the Martinsburg, Indiana school in the 1940s. Busing enabled children to attend consolidated schools, which were larger than one-room schools and had better curricula, teachers, and facilities. All-steel school buses like this one were safer than earlier school
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