The Haymarket Riot, or Haymarket Incident, occured on May 4, 1886 near Chicago's Haymarket Square. What began as a protest against the killing and wounding of several workers during a strike at the McCormick Reaper Works, turned into a violent riot as an unidentified person threw a bomb at the polic

This historical investigation is aligned with the C3 Framework and is from C3teachers.org. This inquiry is focused on the compelling question “Is protest patriotic?” The question challenges the no

After the December 7, 1941, bombing of the military base at Pearl Harbor, Americans rallied around the war effort with the patriotic cry, "Remember Pearl Harbor." Thousands of buttons or lapel pins were distributed to remind Americans of the tragic event and to solidify the war efforts.

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

Robert Capa (1913 - 1954) documented World War II from the bombing of London to fronts in North Africa, Italy, France, and Germany. He captured this arresting image of American troops landing at Omaha Beach on D-day, June 6, 1944. Capa was one of two magazine war correspondents all

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

This variety of maracas, made of cow leather and sinew, is used in musical genres like guaracha, son, and salsa. They are of different sizes, so that one is pitched higher and the other, lower. In contrast, the Afro-Puerto Rican musical tradition known as bomba uses a larger, single

This circular slide rule describes the effects of a nuclear explosion on people. After World War II, scientists at the Los Alamos Scientific Laboratory prepared a report on forms of damage associated with the explosion of atomic bombs. These included physical damage, fire and heat, and nuclear ra

Students will learn how a "cold war" between the United States and the Soviet Union began after World War II in this section of the online exhibition The Price of Freedom: Americans at War. Americans led Western efforts to contain Communism. The Marshall Plan, the Berlin Airlif

Students will learn how Americans joined the Allies to defeat Axis militarism and nationalist expansion. Sixteen million Americans donned uniforms in this section of the online exhibition The Price of Freedom: Americans at War. The millions more who stayed home comprised a vast civilian