The Ablaza-Morse Atraumatic Rib Approximator was devised by Sariel Ablaza (d. 2019), a surgeon from the Philippines who practiced at the Albert Einstein Medical Center and taught at the Medical ...

Our mission is to empower people to create a just and compassionate future by exploring, preserving, and sharing the complexity of our past.

Following on its success with the first commercially successful digital quartz watch on the market in 1972, Time Computer Inc. (a descendant of Hamilton Watch Co., Lancaster, PA) put their calculator ...

Obverse Image: A variation of the Army Air Corps wings. Reverse Image: The Crow Nation Seal, which includes a sun rising over a mountain, a teepee, two (2) headresses and a peace pipe.

After the story of his refusal to shoot a captured bear while on a hunting trip led to the popularization of “teddy bears,” Theodore Roosevelt adopted them as a symbol for his 1904 presidential ...

Founded in 1909, the NAACP is the nation’s oldest civil rights organization. Throughout the 1920s and 1930s, the association led the black civil rights struggle in fighting injustices such as the ...

The McGuffey Readers were a series of language arts textbooks that included a primer, a speller, and readers for grade levels 1-6, each successively building on the student's skills. They were widely ...

For much of his career, Ernest Tubb, the "Texas Troubadour" was considered the ultimate honky tonk vocalist and stylist. Inspired by Jimmie Rodgers in the 1920s, Tubb sustained a musical career that ...

The Smithsonian's collection of watercraft plans, maintained by the History of Technology Division of the National Museum of American History, is a valuable resource for the maritime historian, the ...

Jazz is a kind of music in which improvisation is typically an important part. In most jazz performances, players play solos which they make up on the spot, which requires considerable skill. There is ...

Understanding women’s history is integral to understanding the American experience. Although often underrepresented in recorded histories, women helped build the United States of America of today and ...

The depth, the dark, and the dangers inherent in mining created a uniquely dangerous working environment for the miner. Miners faced death from collapsing mines, oxygen deprivation, and haulage ...