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

Monetary objects are powerful sources for exploring the past. The Value of Money connects American history to global histories of exchange, cultural interaction and expression, political change, and innovation through objects from the Smithsonian Institution’s National Numismatic Collection. T

"Is there room in Americans’ Thanksgiving celebrations for both thankfulness and mourning? That challenging question arose as my colleagues and I took a new look at encounters in the 1600s between English Pilgrims and the Wampanoag people in eastern Massachusetts. A showcase exhibition, titled

"Although women's empowerment can have a revolutionary effect on society, it doesn't always look like a revolution. Today, organizations like UN Women work to empower women in rural areas through economic programs that help them “claim their rights to land, leadership, opportunities, and choices�

"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

"On a Saturday evening in January 1864, abolitionist Anna Dickinson stood inside the Hall of Representatives looking out into the U.S. House’s packed floors and overflowing galleries. Two thousand members of the public, senators, representatives, cabinet members, First Lady Mary Todd Lincoln—and

"One hundred years ago Marie Curie stood among the rose bushes, the press, and a crowd of White House guests, holding a golden key. The key opened a box that contained a gram of radium. Could it also unlock a cure to cancer? Women across America were led to believe as much, rising to the call sent

"On January 6, my wife and I watched the live news broadcasts in disbelief at the scenes unfolding on television, as a violent mob stormed the U.S. Capitol and interrupted the constitutionally mandated joint session of Congress presided over by the vice president to ratify the 2020 election results.