Many Voices, One Nation takes visitors on a chronological and thematic journey that maps the cultural geography of the unique and complex stories that animate the Latin emblem on the country’s Great Seal and the national ideal: E pluribus unum, Out of m

What happens when a people decide to govern themselves? America’s national treasures come to life in this compelling exhibition that examines the bold experiment to create a government “of the people, by the people, and for the people.” American Democracy: A Great Leap of Fait

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

In the early 1960s, the Chicago firm of Playskool introduced this educational toy for children three to six years old, seeking to give them an early familiarity with numbers. It has two rows of relatively large rotating wooden rectangular blocks, each with a row of square rotating wooden blocks belo

During the late 1950s and 1960s, American scientists and educators proposed using machines for instruction. Teaching machines and related programmed textbooks used a careful sequence of questions for teaching. Jerome C. Meyer and later William R. Hafel, both of Sunnydale, California, believed that i

Introduced in mid-1976, the Little Professor is a non-printing electronic calculator modified to present simple arithmetic problems. A correct answer prompts another problem on the eight-digit display. An error delivers the message, "EEE." The colorful keyboard shows a professor with whiskers and gl

"The National Museum of American History has over 2 million items in its collections, spanning every topic you could think of. And from wooden crosses to baseball uniforms to costume butterfly wings, our collections show that Latinx people have been an important part of U.S. history since the nation

“The trouble began soon after well-known social reformer Emily Bissell had finished her remarks at the meeting of the National Association Opposed to Woman Suffrage’s Washington, D.C., branch. As audience members got ready to leave that March 1912 evening, supporters of woman suffrage stationed

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

Spark!Lab is a hands -on invention studio in the Smithsonian's National Museum of American History. Spark!Lab activities communicate that invention is a process, rather than a single “Aha!” moment; provide visitors with opportunities to explore the invention process and their own inventiveness;