On November 8, 1994, 59 percent of California voters approve Proposition 187, banning undocumented immigrants from using the state’s major public services. Despite its wide margin of victory, the ballot measure never takes effect. In 1994, California, the home of Presidents ...read more

On September 6, 2018 an off-duty Dallas police officer fatally shoots an unarmed Black man in the victim's own apartment.  Returning to her apartment complex in Dallas, Texas, police officer Amber Guyger entered the apartment of Botham Jean, believing it to be her own. The ...read more

On August 29, 1970, more than 20,000 Mexican-Americans march through East Los Angeles to protest the Vietnam War. The Chicano Moratorium, as this massive protest was known, was peaceful until the Los Angeles Police entered Laguna Park, sparking violence and rioting that led to ...read more

On August 21, 1980, animal rights advocates Ingrid Newkirk and Alex Pacheco found People for the Ethical Treatment of Animals. Rising from humble beginnings, PETA will soon become the world’s foremost and most controversial animal rights organization. Newkirk’s interest in ...read more

On August 9, 2014, police officer Darren Wilson shoots and kills Michael Brown, an unarmed Black teenager, in Ferguson, Missouri, a suburb of St. Louis. Protests and riots ensue in Ferguson and soon spread across the country. There are many different accounts of the incident, ...read more

On August 8, 2008, a long-simmering conflict between Russia and Georgia boiled over into a shooting war between the small Caucasian nation and the superpower of which it was once a part. The brief Russo-Georgian War was the most violent episode in a conflict that began more than ...read more

A mass shooting takes place early in the morning in Dayton, Ohio on August 4, 2019. The killing of nine people and the injuries of 27 was significant in its own right, but this mass shooting was particularly notable for being America’s second in less than 24 hours. Just one day ...read more

On August 1, 1943, 177 B-24 bombers take off from an Allied base in Libya, bound for the oil-producing city Ploiești, Romania, nicknamed “Hitler’s gas station.” The daring raid, known as Operation Tidal Wave, resulted in five men being awarded the Medal of Honor—three of them ...read more

President Harry S. Truman signs Executive Order 9981—ending discrimination in the military—on July 26, 1948. Truman’s order ended a long-standing practice of segregating Black soldiers and relegating them to more menial jobs. African Americans had been serving in the United ...read more

On July 26, 1990, President George H.W. Bush signs the Americans with Disabilities Act (ADA), the most sweeping affirmation of rights for the disabled in American history at the time, into law. As disability rights attorney Arlene Mayerson would later write, the story of the ADA ...read more

On July 17, 2014, two New York Police Department officers confront Eric Garner, a 43-year-old African American father of six, for illegally selling cigarettes. Garner dies after losing consciousness as a police officer locks him in an illegal chokehold, and within hours, a video ...read more

On July 10, 2015, Texas State Trooper Brian Encinia pulls over a 28-year-old Black woman, Sandra Bland, for failing to signal a lane change. After a heated encounter, he arrests her and takes her to a nearby jail. Three days later, on the morning of July 13, she is found dead in ...read more

Niagara Movement members begin meeting on the Canadian side of the Niagara Falls. This all-African American group of scholars, lawyers and businessmen came together for three days to create what would soon become a powerful post-slavery Black rights organization. Although it only ...read more

June 26, 2015 marks a major milestone for civil rights in the United States, as the Supreme Court announces its decision in Obergefell v. Hodges. By one vote, the court rules that same-sex marriage cannot be banned in the United States and that all same-sex marriages ...read more

On the morning of June 27, 2015, activists posing as joggers signal to one of their comrades that the police have momentarily turned their attention away from the flagpole outside the South Carolina State House. Having received the signal, Brittany "Bree" Newsome scales the pole, ...read more

A dramatic battle in the Tennessee House of Representatives ends with the state ratifying the 19th Amendment to the United States Constitution on August 18, 1920. After decades of struggle and protest by suffragettes across the country, the decisive vote is cast by a 24-year-old ...read more

On July 20, 1865, a Frenchman named Pierre Lallement arrives in the United States, carrying the plans and components for the first modern bicycle. Lallement constructed and patented the first bicycle in the United States, but received no significant reward or recognition for ...read more

Hearing arguments in the case of the Zong, a slave ship, the Chief Justice of the King’s Bench in London states that a massacre of African slaves “was the same as if Horses had been thrown over board” on June 22, 1783. The crew of the Zong had thrown at least 142 captive Africans ...read more

On June 15, 2006, on the remote island of Spitsbergen halfway between mainland Norway and the North Pole, the prime ministers of Norway, Sweden, Finland, Denmark and Iceland lay the ceremonial first stone of the Global Seed Vault. The vault, which now has the capacity to hold ...read more

Robert Falcon Scott’s ship, the Terra Nova, sets sail from Cardiff, Wales on June 15, 1910, bound for Antarctica. Though it will succeed in reaching its objective, the expedition will end in tragedy as Scott and his companions give up their lives in order to become the second ...read more

On the afternoon of March 15, 2019, a gunman attacked two different mosques in Christchurch, New Zealand during Friday Prayer, killing 51, wounding 40, and deeply scarring a nation that had, until this point, believed itself to be safe from the scourges of gun violence and ...read more

On the evening of June 17, 2015, a mass shooter took the lives of nine African American people at a Bible study at Emanuel African Methodist Episcopal Church in Charleston, South Carolina. The massacre at a historic black church deeply shook a nation already jaded by frequent gun ...read more

On May 12, 1903, President Theodore Roosevelt’s trip to San Francisco is captured on moving-picture film, making him one of the first presidents to have an official activity recorded in that medium. READ MORE: 7 Little-Known Legacies of Teddy Roosevelt  A cameraman named H.J. ...read more

In the early hours of May 9, 1970, a frazzled President Richard Nixon embarks upon what his Chief of Staff will describe as "the weirdest day so far" of his presidency. Preoccupied with the recent Kent State shootings and the unrest that has spread to college campuses across the ...read more

On May 4, 1824, Ludwig van Beethoven’s ninth and final symphony debuts at Vienna’s Theater am Kärntnertor. Having lost his hearing years earlier, the celebrated composer nonetheless “conducts” the first performance of his Ninth Symphony, now widely considered to be one of the ...read more

On November 4, 2016, the Paris Agreement comes into effect. A sweeping international pledge to dramatically reduce carbon emissions, the Agreement remains a potential turning point in the history of human relations with the Earth’s climate. With one of the world’s most prolific ...read more

On December 11, 1997 in Kyoto, Japan, the United Nations adopts a new treaty for the purpose of limiting greenhouse gas emissions. The Kyoto Protocol to the United Nations Framework Convention on Climate Change was a revolutionary attempt to forestall climate change, an admirable ...read more

On December 17, 1963, one of the first major pieces of environmental legislation in the United States becomes law. The Clean Air Act empowers federal and state agencies to research and regulate air pollution, marking a major expansion of government efforts to fight back against ...read more

The Clean Water Act becomes law on October 18, 1972. After centuries of reckless treatment of American rivers, streams, lakes and bays, the landmark act institutes strict regulations on pollution and quality controls for the nation’s waters for the first time in its history. The ...read more

On December 28, 1973, President Richard Nixon signs the Endangered Species Act into law. The act, which Nixon called for the previous year, is considered one of the most significant and influential environmental laws in American history. The government started taking action to ...read more

In March of 1958, Dr. Charles David Keeling begins regularly measuring the amount of carbon dioxide in the atmosphere from the Mauna Loa Observatory in Hawai'i. Over the ensuing years, his research will reveal what is now known as the Keeling Curve: a graph of continuously-taken ...read more

On December 2, 1970, a new federal agency opens its doors. Created in response to the dawning realization that human activity can have major effects on the planet, the Environmental Protection Agency heralded a new age of government action on behalf of the environment. Concerns ...read more

On June 28, 2007, the United States removes one of its most commonly-used national symbols from its List of Endangered and Threatened Wildlife. The de-listing of the bald eagle, which had been close to vanishing from North America around the middle of the 20th century, was one of ...read more

On December 13, 2019, 16-year-old Greta Thunberg is named Time magazine's Person of the Year. The Swedish climate activist became the first Person of the Year to be born in the 21st century and the youngest ever to receive the honor. Thunberg took to activism early, convincing ...read more

In the scientific journal Nature on May 16, 1985, three scientists from the British Antarctic Survey announce their detection of abnormally low levels of ozone over the South Pole. Their discovery, commonly known as the Ozone Hole, became a palpable example of mankind's ability ...read more

Pirates had not captured a ship sailing under the American flag since the 1820s until April 8, 2009, when the MV Maersk Alabama was hijacked off the coast of Somalia. The high-profile incident drew worldwide attention to the problem of piracy, commonly believed to be a thing of ...read more

On April 30, 2004, the CBS program 60 Minutes reports on abuse of prisoners by American military forces at Abu Ghraib, a prison in Iraq. The report, which featured graphic photographs showing U.S. military personnel torturing and abusing prisoners, shocked the American public and ...read more

On April 30, 1997, at exactly 12:11 pm, London's iconic Big Ben clock stops ticking. For 54 minutes, the most famous clock in the world failed to keep time. Completed in 1859, Big Ben has a long history of technical issues. The first bell cast for the tower cracked before it ...read more

On April 30, 1993, four years after publishing a proposal for “an idea of linked information systems,” computer scientist Tim Berners-Lee released the source code for the world’s first web browser and editor. Originally called Mesh, the browser that he dubbed WorldWideWeb became ...read more

On April 8, 1990, 18-year-old Ryan White dies of pneumonia, due to having contracted AIDS from a blood transfusion. He had been given six months to live in December of 1984 but defied expectations and lived for five more years, during which time his story helped educate the ...read more