Edwin McMillan shared the 1951 Nobel Prize in Chemistry with Glenn Seaborg. McMillan discovered element 93, or neptunium, in 1940 while working on the world's largest cyclotron at the Lawrence Livermore National Laboratory. Seaborg's discovery of element 94, or plutonium, was based on McMillan's

This large, hand-held drum, known in Puerto Rico as a pandereta, is an essential instrument in the musical genre known as plena. The plena was developed by agricultural workers at the end of the 19th century on the southern coast of the island, around the city of Ponce. Consider

On a Sunday morning in December 1941, a chaplain had his most difficult assignment — to say a prayer to sailors aboard a U.S. navy ship actively under low–flying attack by the enemy firing from all directions. He quickly realized the best he could do was walk the ammunition line saying, “Pr

This apparatus was designed by Catherine Stern, a physicist by training and the founder of a Montessori school in her native Germany. Stern and her husband were of Jewish descent, and emigrated to New York City in 1938 to avoid persecution by the Nazis. There she developed these materials, descri

During the American Civil War, General Benjamin Butler so appreciated the heroic actions of African American soldiers under his command at the 1864 battles of Fort Harrison and Fort Gilmer that he commissioned a special medal for them. Designed by Anthony C. Paquet and realized in silver by Tiffa

The yo-yo maraca is a Puerto Rican novelty that unites both a spinning top and a musical instrument of native origin called a maraca. The name "yo-yo" is a misnomer, since the toy functions like a spinning top.

Grab Bag Inventing is an activity that allows participants to try playful inventing and helps them recognize their own creative abilities. Participants work together in small groups to design inventions using common materials. 

The term “ballot” is derived from the Italian ballotta, meaning “little ball.” This ballot box was not used in a U.S. election. It was used by members of a Washington, D.C., social club.

This cane belonged to Toussaint L’Ouverture, a military and political leader in the Haitian Revolution. The revolution began as a slave revolt in the French colony of Saint-Domingue in 1791 and ended with emancipation and the founding of the free nation of Haiti in 1804. Nearly half a million ensl

This is a miniature version of the barril de bomba, the kind of drum used in performances of the Afro-Puerto Rican musical tradition known as bomba. While bomba can be used as the generic name for a number of rhythms, its real meaning is about the encounter and creative relationship between dance