Amber Melton made this robot at CompSciConnect, a University of Maryland camp. When few girls signed up for the university’s computer science classes, Dr. Jan Plane realized that something in the high schools wasn’t working. So she created a camp for middle schoolers to excite them about compute

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

This panel from the AIDS Memorial Quilt honors activist Roger Lyon, who died of AIDS in 1984. Shortly before his death, Lyon testified before Congress to appeal for funding to combat the growing epidemic. One of the greatest challenges in the fight against AIDS was changing public

The astrolabe is an astronomical calculating device used from ancient times into the eighteenth century. Measuring the height of a star using the back of the instrument, and knowing the latitude, one could find the time of night and the position of other stars. The openwork piece on the front, ca

Students will learn how laws and customs led to separate and unequal education for people of color in the United States and the efforts made by citizens to guarantee equal education in the century before the Brown v. Board of Education decision. The Battleground: Separate and Unequal Educatio

Developed in Scotland and played in the northern United States, curling debuted as a medal sport at the 1998 Winter Olympics. This curling stone belonged to 75-year-old curler Rudy Senich, of Duluth, Minn., who has been curling three nights a week for the past 35 years. According to Senich's curl

Students will learn about Thomas Edison's life in the years after he had become one of the most famous men in the world. At the age of 40, with major inventions behind him, Edison faced a new technical world, which he had helped to create, and the challenge of competing with his ow

Gold coins fused by heat. Specific History This pile of five-peseta coins was fused together by the fire aboard the Spanish ship Infanta Maria Teresa, flagship of Admiral Pascual Cervera. General History Infanta Maria Teresa led the so

In 1855 Secretary of War Jefferson Davis was instrumental in the creation of two regiments of cavalry. It was recommended that the cavalry have a distinctive hat; it is sometimes called the Jeff Davis hat. It also was referred to as the Hardee hat, after William Joseph Hardee, an officer of the 2

La Malinche, the title of this lithograph, was the indigenous woman who translated for Cortés between Maya, Náhuatl, and Spanish during his first years in Mexico. Considered either as a traitor or a founding mother by some Mexicans, La Malinche was Cortés' lover and the mother of his