Declaring the distances to such places as Boston, San Francisco, and Toledo, this sign post graced the set of M*A*S*H during the show's run. Set in Korea during the 1950s, the show revolved around the work and antics of the staff of a Mobile Army Surgical Hospital (MASH). Its final episo
The Global Positioning System (GPS) consists of NAVSTAR satellites in earth orbit that send signals to receivers on land, sea, or in the air. The system became operational in 1978. Its military usefulness was demonstrated during Operation Desert Storm (1991), when coalition troops with receivers
This lithograph illustrates the chaos and conflict engulfing northern Mexico during the years of the Mexican-American War from 1846-1848. In these years the United States organized an Army of Occupation, initially led by General Zachary Taylor, to capture cities like Monterrey in preparation for
Many of the surgical sets used during the American Civil War were made to the specifications of the Union Army. This Civil War surgical set was made by George Tiemann & Company of New York City. Tiemann, who emigrated to America from Germany in 1826, was considered one of the finest surgical
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
Before the famous California gold rush, several important strikes were made in the East: in North Carolina, South Carolina, and Georgia. The earliest took place in Mecklenburg County, N.C., in 1799, where a nugget weighing several pounds was discovered. Its finder used it as a doorstop until some
This print shows American forces attacking the fortress palace of Chapultepec on Sept. 13th, 1847. General Winfield Scott, depicted in the lower left on a white horse, led the southern division of the U.S. Army that successfully captured Mexico City during the Mexican American War.
During World War I, machine guns were heavy, crew-served weapons. Their operation required several soldiers. Even so-called light machine guns could not easily be handled by single soldiers. To meet the need for an individual rapid-fire weapon, several inventors devised submachine guns. Light eno
Once a new national government had been established under a new Constitution, attention naturally turned to ways of proclaiming national identity. A new, national coinage was one way of doing so, especially if it featured patriotic new images, rather than the endless sequence of crowned monarchs
From the 1920s, psychologists have explored ways to automate teaching. In the 1950s, the psychologist B. F. Skinner of Harvard University suggested that techniques he had developed for training rats and pigeons might be adopted for teaching humans.
A picture book about the life of Florence Nightingale, a nurse who was dedicated to making hospitals clean and efficient. Through her life's work, she helped to make nursing an important and respected profession.
A traveling book about an adventurous young woman, Alice Ramsay, who drives across the country in 1909. Despite facing natural and manmade obstacles - including poor roads and a lack of traffic signs - Alice's westward voyage ends triumphantly in San Francisco, making this a charming tale of a gi
Explores five Puerto Rican festivals: The Calle San Sebastian Festival, the fiesta for Santiago Apostol, the celebrations during the Las Navidades, the patriotic festivals of Grito de Lares, and Puerto Rican Day in the United States.