Dmitri Mendeleev's looming publishing deadline resulted in a system that classified all of the chemical elements.
From February 22 to 25, 1986, hundreds of thousands of Filipinos gathered on Epifanio de los Santos Avenue to protest President Ferdinand Marcos' claim that he had won re-election.
On 20 November 1975, Spanish General Francisco Franco died in bed, signaling the unceremonious end of one of Europe’s longest dictatorships.
HIV and COVID-19 have both laid bare that stark racial disparities exist in population health and in access to quality medical care in the US.
In July 1995, over 8,000 Bosniak (Bosnian Muslim) men and boys were killed in the Srebrenica massacre.
The real origins of the iPhone’s power stems from the pioneering efforts of communication innovators that preceded the AT&T engineers of the 1920s.
In August 1942, the most famous battle of the Second World War began.
How do conspiracy theories of the past compare with current ones?
The Soviet Union tried to minimize news of the HIV/AIDS outbreak, blaming the victims.
Humans have controlled and, at times, eliminated animal populations on the islands.
On August 25th, 1944, Paris was liberated after more than four years of Nazi occupation.
After a devasting fire in Rome in 64 CE, Emperor Nero successfully rebuilt the city.
When it was over, the populations of Europe, China, and India were cut by a third to a half.
Germ theory helped to usher in the widespread use of cloth masks.
Soon after SARS was discovered, labs around the world shared information in search of a cure.
Estimates suggest that this flu claimed as many as 50 million lives around the world between 1918 and 1919.
The first “Woman’s Day” celebration was organized by the U.S. Socialist Party in Chicago on May 2, 1908.
The origins of vaccination lie in the practice of variolation, which was used to protect against smallpox.
The massacre and continued police brutality were turning points in Indian anti-colonialism.
In 1947, British-ruled India was divided into two separate, independent states.
Bolshevik Red Guards took control of the Russian capital from the provisional government October 1917.
She wrote “The Declaration of Rights and Sentiments,” outlining the ways in which men held women in “absolute tyranny.”
Las Casas became an important figure in the development of ideas of human rights.
It was the spark that emboldened the people’s movement to overthrow King Louis XVI.
The man we celebrate today is not the man who lost his life on the balcony of the Lorraine Motel in 1968.
There are an estimated 917 hate groups currently active in the U.S.
Walls have a decidedly mixed record in achieving their goals to keep some people in and others out.
On January 20, 1793, the deputies decreed Louis’ guilt and his punishment by death.
The Normandy Invasion on June 6, 1944 remains today one of the best known campaigns of the WWII.
The fictional story of Wakanda has real historical origins in nuclear-age Congo.
Historical examples suggest climate change will aggravate political instability, poverty, and conflict.