The Society for Human Rights is founded by Henry Gerber in Chicago. The society is the first gay rights organization as well as the oldest documented in America. After receiving a charter from the ...

When Roosevelt goes into Santo Domingo in 1904-1905, he has to provide some kind of public justification. I don't think it's just a justification. I think Roosevelt really sincerely believed that what ...

The source of the influenza illness remained a mystery to scientists as viruses were too small and obscure for the optical microscopes available in 1918. Credit: Naval Historical Society Of these, an ...

Left: A racist postcard, labeled with the epithet “Little Africa,” depicts Greenwood burning during the massacre. Image credits: Tulsa Historical Society & Museum and Mike Simons I have never seen a ...

Scientist Mária Telkes spent her life chasing the sun. Telkes, who was born in Hungary in 1900, first became interested in solar energy while studying at the University of Budapest. After receiving ...

Eugenicists like Paul Popenoe relied on dangerously flawed theories of heredity to describe different groups of people. Popenoe shows a couple a pedigree of "Black People of Artistic Ability," 1930.

According to one of the Iranian students who seized the U.S. embassy in Tehran in November 1979, the United States provoked action against its diplomats with one fateful decision. On October 22, ...

Upton Sinclair, 1900. Library of Congress. By the turn of the 20th century, the unsavory practices of the country’s meat processing industry had already engendered some major scandals. The most ...

Meteorologist Tetsuya “Ted” Fujita kept a lot of records. He recorded the prevalence of tornados in the United States by month and by state. He recorded the shapes of clouds. He recorded every ...

She tracked her targets’ coded messages for more than two years, painstakingly translating gibberish into actionable intelligence. Then, without warning, the messages ceased. When covert transmissions ...

Every time a lynching occurred in the U.S. between 1920 and 1936, the NAACP flew this flag from their headquarters on Fifth Avenue in New York. Library of Congress. Can one flag really change public ...

A diverse and potent force in space exploration, women at NASA who served as human computers were ultimately responsible for sending astronauts to the moon. By Nathalia Holt Computers at the Jet ...