Menarche, or the onset of menstruation, generated much advice and many attempts to manage girls' bodies in a public w
History Explorer Results (1261)
Related Books (350)
Grade Range:
K-12
Resource Type(s):
Artifacts, Primary Sources
Date Posted:
12/31/2009
As the “Millennium Bug” gained media attention, some businesses used the hype to market special millennium foods. From cars to breakfast cereal, companies like the Figueroa Brothers, Inc., cashed in on the Y2K name. This bottle once contained Y2K Millennium Meltdown ¿R-U-Ready? hot sauce, a
Grade Range:
K-12
Resource Type(s):
Artifacts
Date Posted:
4/7/2016
This Sony "Walkman" portable tape player dates from the early 1980s. Originally introduced in 1979 as the “Soundabout,” two people could listen simultaneously while a small microphone permitted them to converse without removing their headsets. Powered by a 9-volt battery, the recorder sold we
Grade Range:
K-12
Resource Type(s):
Reference Materials
Date Posted:
1/2/2018
World War I provided a testing ground for the application of new medical technologies and procedures and, in some cases, accelerated their general acceptance or development in a much wider context. Simultaneously, wartime medical practice reflected the larger concerns and prejudices of early 20th
Grade Range:
K-12
Resource Type(s):
Artifacts
Date Posted:
12/30/2020
Board of Health: OBSERVATION QUARANTINE: Persons other than those of the household and those legally authorized are forbidden to enter. No person other than those authorized by the Board of Health shall remove this placard. Any person or persons defacing, covering up or destroying this placard rende
Grade Range:
K-12
Resource Type(s):
Artifacts
Date Posted:
1/2/2022
For decades, teachers drilled American school children using flash cards that gave simple arithmetic problems. The advent of inexpensive electronic calculators in the 1970s made it possible to do much routine arithmetic automatically. To teach school children the meaning of basic operations, new dev
Grade Range:
K-12
Resource Type(s):
Artifacts, Primary Sources
Date Posted:
3/23/2012
This is a set of eight "dropping sticks" used to teach acoustics. It was made in Paris by the famous scientific instrument maker Rudolph Koenig, sometime between 1858 and 1902. This particular set was used in the introductory physics class of the Worcester Polytechnic Institute.
These s
Grade Range:
K-12
Resource Type(s):
Artifacts, Primary Sources
Date Posted:
9/20/2009
Mariachis, groups comprised of vocalists, trumpeters, violinists, and various bass and guitar players, are today considered Mexico's traditional musical ensemble. Originally from the state of Jalisco, mariachi music transformed itself from a regional to a national music between the 1930s and 1950
Grade Range:
K-12
Resource Type(s):
Artifacts, Primary Sources
Date Posted:
11/10/2008
The ENIAC was a large, general-purpose digital computer built to compute ballistics tables for U.S. Army artillery during World War II. Occupying a room 30 feet by 50 feet, ENIAC—the Electrical Numerical Integrator and Computer—weighed 30 tons and used some 18,000 vacuum tubes. It could compu
Grade Range:
K-12
Resource Type(s):
Interactives & Media, Lessons & Activities
Date Posted:
1/6/2009
Explore features of the Star-Spangled Banner using this interactive flag included in the online exhibition entitled The Star-Spangled Banner: The Flag that Inspired the National Anthem. Using this interactive tool, students can click on hotspots and learn something new about the fla
Grade Range:
K-12
Resource Type(s):
Artifacts, Primary Sources
Date Posted:
9/3/2008
The American flag is a powerful symbol of freedom and independence for many activist groups who wish to claim full rights as citizens . This commercially marketed lap blanket was altered by hand to include the universal access symbol made up of stitched stars.
