August 31 in History | This Day in History | The Book Center
THIS DAY IN HISTORY
August
31

August 31 wasn’t just another late-summer day on the calendar.

It was also a date for royal dramas, daring explorations, game-changing ideas, and cultural touchstones that still echo today.

Key Events on August 31 in History

  • World History1422

    Death of England’s Warrior King Henry V

    On August 31, 1422, King Henry V of England died at the Château de Vincennes near Paris, probably from dysentery, at just 35 years old. The victor of Agincourt and a central figure in the Hundred Years’ War, Henry had forced major concessions from France and was recognized as heir to the French throne. His sudden death left an infant son, Henry VI, as king and created a power vacuum that ambitious nobles quickly filled. The weakened royal authority in both England and France helped set the stage for renewed conflict and, in England’s case, future civil wars.

  • World History1795

    French Forces Win at Neu-Ulm in the War of the First Coalition

    On August 31, 1795, during the War of the First Coalition, French Revolutionary troops under Jean Victor Marie Moreau clashed with Austrian forces near Neu-Ulm in southern Germany. The engagement formed part of France’s push across the Rhine to pressure Habsburg territories and defend the gains of the Revolution. Though not the largest battle of the war, the French success contributed to Austrian setbacks that made a negotiated peace more likely. These campaigns gradually helped redraw the political map of Central Europe and spread revolutionary military practices across the continent.

  • U.S. History1803

    Lewis and Clark Launch Their Journey from Pittsburgh

    On August 31, 1803, Meriwether Lewis departed Pittsburgh down the Ohio River, beginning the field phase of what would become the Lewis and Clark Expedition. Commissioned by President Thomas Jefferson after the Louisiana Purchase, the mission aimed to map the vast new territory, establish relations with Indigenous nations, and seek a practical route to the Pacific. Lewis’s departure in a specially constructed keelboat marked the transition from planning to action for this ambitious exploration. The information, maps, and specimens collected over the next years became foundational to American understanding of the continent’s interior.

  • U.S. History1864

    Battle of Jonesborough Opens, Sealing Atlanta’s Fate

    On August 31, 1864, Union and Confederate forces collided near Jonesborough, Georgia, in the opening day of the Battle of Jonesborough. Union General William T. Sherman sought to cut the last major railroad supplying Atlanta, while Confederate General John Bell Hood tried desperately to defend the vital line. Intense fighting on August 31 forced the Confederates back, setting up a decisive Union success the following day. The loss of the rail connection compelled Hood to abandon Atlanta, a blow that boosted Northern morale and strengthened Abraham Lincoln’s position in the 1864 presidential election.

  • World History1888

    Mary Ann Nichols Is Murdered in London’s East End

    In the early hours of August 31, 1888, the body of Mary Ann “Polly” Nichols was discovered in Buck’s Row in London’s Whitechapel district. Her killing is widely regarded as the first of the “canonical five” murders attributed to the unidentified serial killer known as Jack the Ripper. The brutality of the crime, and several similar murders that followed, gripped Victorian Britain and filled newspaper columns with lurid speculation. The investigation’s failure to find the killer influenced modern policing, forensic methods, and the public’s morbid fascination with true crime.

  • World History1907

    Anglo-Russian Entente Completes the Triple Entente

    On August 31, 1907, Britain and Russia signed the Anglo-Russian Entente in Saint Petersburg, resolving long-standing imperial rivalries in Persia, Afghanistan, and Tibet. The agreement divided spheres of influence and eased tensions that had simmered through the so-called “Great Game” in Central Asia. Crucially, it brought Russia into alignment with Britain and France, creating the Triple Entente that balanced the Triple Alliance of Germany, Austria-Hungary, and Italy. These alliance blocs hardened the diplomatic landscape of Europe in the years leading up to World War I.

  • Arts & Culture1928

    “The Threepenny Opera” Premieres in Berlin

    On August 31, 1928, Bertolt Brecht and Kurt Weill’s “Die Dreigroschenoper” (“The Threepenny Opera”) premiered at the Theater am Schiffbauerdamm in Berlin. The gritty, jazz-inflected work reimagined John Gay’s 18th-century “The Beggar’s Opera,” following the criminal antihero Mack the Knife through a corrupt, satirical London. With its biting social commentary and memorable songs, including “Mack the Knife,” the show became a sensation of Weimar culture. It influenced musical theater, cabaret, and political performance for generations and remains a staple of stages around the world.

  • World History1939

    Hitler Issues Final Orders to Invade Poland

    On August 31, 1939, Adolf Hitler gave the final operational orders for German forces to invade Poland the next morning. German units moved into attack positions along the border, while Nazi authorities staged the Gleiwitz incident, a manufactured attack meant to serve as propaganda justification for war. Diplomats in European capitals scrambled for last-minute solutions, but the military machinery was already in motion. The invasion launched on September 1 and triggered formal declarations of war by Britain and France, marking the beginning of World War II in Europe.

  • U.S. History1954

    Hurricane Carol Slams Into New England

    On August 31, 1954, Hurricane Carol made landfall in New England, bringing destructive winds and flooding from Long Island to Maine. The storm knocked out power, toppled trees, and damaged homes and harbor facilities across coastal communities. With widespread disruption to transportation and communications, Carol became one of the more memorable mid-century hurricanes in the region. The event reinforced the need for better forecasting, warning systems, and coordinated emergency planning along the U.S. Atlantic seaboard.

  • World History1957

    Federation of Malaya Declares Independence from Britain

    At the stroke of midnight on August 31, 1957, the Federation of Malaya gained independence from the United Kingdom in a ceremony at Merdeka Stadium in Kuala Lumpur. Tunku Abdul Rahman, the country’s first prime minister, famously shouted “Merdeka!”—meaning “freedom”—to a jubilant crowd. The transfer of power ended decades of colonial rule and followed a negotiated process that balanced ethnic, political, and economic interests. Malaya’s independence became a key moment in Southeast Asia’s decolonization and laid the groundwork for the later formation of Malaysia.

  • World History1962

    Trinidad and Tobago Join the Commonwealth as an Independent State

    On August 31, 1962, Trinidad and Tobago achieved full independence from the United Kingdom. Celebrations in Port of Spain included flag-raising ceremonies, parades, and cultural performances reflecting the islands’ diverse African, Indian, European, and Indigenous heritage. The new nation adopted a parliamentary system within the Commonwealth, with Eric Williams as its first prime minister. Independence allowed Trinidad and Tobago to pursue its own foreign policy and economic development path, becoming an influential Caribbean voice in regional and international affairs.

  • World History1980

    Gdańsk Agreement Legalizes Poland’s Solidarity Union

    On August 31, 1980, striking workers at the Lenin Shipyard in Gdańsk, led by electrician Lech Wałęsa, signed the Gdańsk Agreement with Poland’s communist government. The deal ended weeks of labor unrest and, remarkably, allowed the creation of Solidarity, the first independent trade union recognized in the Soviet bloc. The agreement granted workers broader rights, including the right to strike and more open discussion of economic conditions. Solidarity soon became a mass social movement that eventually helped push Poland toward democratic reforms and influenced opposition movements across Eastern Europe.

  • Science & Industry1986

    Aeroméxico Flight 498 Collides Midair Over Cerritos, California

    On August 31, 1986, Aeroméxico Flight 498, a DC-9 inbound to Los Angeles, collided midair with a small Piper aircraft over the suburb of Cerritos. Both planes crashed, and falling wreckage destroyed homes on the ground, leading to significant loss of life in the neighborhood. Investigators determined that the Piper had strayed into controlled airspace without proper clearance. The tragedy spurred changes in U.S. air traffic control procedures and accelerated the adoption of collision-avoidance technologies and stricter rules for general aviation near busy airports.

  • World History1989

    Poland Appoints Tadeusz Mazowiecki, First Non-Communist PM in Eastern Bloc

    On August 31, 1989, the Sejm, Poland’s parliament, approved Tadeusz Mazowiecki as prime minister, making him the first non-communist head of government in the Eastern Bloc since the late 1940s. A former Solidarity adviser and Catholic intellectual, Mazowiecki led a broad coalition government formed after semi-free elections earlier that summer. His appointment signaled that communist monopoly rule in Eastern Europe was rapidly eroding. The peaceful transition in Poland encouraged reformers elsewhere and became a key step on the road to the revolutions that swept the region later that year.

  • World History1990

    East and West Germany Sign the Unification Treaty

    On August 31, 1990, negotiators from the Federal Republic of Germany (West Germany) and the German Democratic Republic (East Germany) signed the Treaty on the Establishment of German Unity in East Berlin. The document laid out the legal and political framework by which East Germany would accede to the Federal Republic, including currency, citizenship, and constitutional arrangements. It followed the collapse of the Berlin Wall and months of rapid political change across Eastern Europe. The treaty cleared the way for formal reunification on October 3, 1990, reshaping the map and politics of post–Cold War Europe.

  • World History1991

    Kyrgyzstan Declares Independence from the Soviet Union

    On August 31, 1991, the Kyrgyz Republic, commonly known as Kyrgyzstan, declared independence from the crumbling Soviet Union. The decision came just days after the failure of the hardline August coup in Moscow, which had undermined central Soviet authority. In Bishkek, leaders moved quickly to assert sovereignty, adopt new national symbols, and begin reshaping institutions inherited from the Soviet era. Kyrgyzstan’s declaration joined a cascade of independence movements that, by the end of the year, brought the Soviet Union to a formal end.

  • World History1994

    Last Russian Troops Withdraw from Estonia

    On August 31, 1994, the last units of the Russian military left Estonia, ending a continuous Russian and Soviet military presence that dated back to World War II. Their departure fulfilled agreements negotiated after Estonia restored its independence in 1991. For many Estonians, watching the final trains depart symbolized the closing of a long and often painful chapter of foreign domination. The withdrawal allowed the country to fully reassert control over its territory and advance its bid to join Western institutions such as the European Union and NATO.

  • Famous Figures1997

    Princess Diana Dies After Car Crash in Paris

    In the early hours of August 31, 1997, Diana, Princess of Wales, died in a Paris hospital after a car crash in the Pont de l’Alma tunnel. Her partner Dodi Fayed and the driver Henri Paul were also killed, while a bodyguard survived with serious injuries. News of Diana’s death prompted an extraordinary outpouring of public grief in Britain and around the world, with seas of flowers left outside royal residences. The tragedy led to intense scrutiny of paparazzi behavior, debates about the monarchy’s relationship with the public, and renewed attention to her charitable causes, from landmine clearance to HIV/AIDS awareness.

  • Science & Industry1998

    North Korea Launches Its First Satellite Attempt, Kwangmyŏngsŏng-1

    On August 31, 1998, North Korea launched a Paektusan rocket, claiming it had placed the satellite Kwangmyŏngsŏng-1 into orbit. U.S. and other tracking networks, however, reported no functioning satellite, concluding that the launch likely failed before achieving orbit. Even so, the three-stage rocket flight demonstrated technical progress in long-range missile development and raised alarm in neighboring countries and the United States. The launch intensified international negotiations and sanctions efforts aimed at curbing North Korea’s missile and nuclear programs.

  • U.S. History2005

    New Orleans Reels as Katrina Flooding Becomes Fully Apparent

    By August 31, 2005, two days after Hurricane Katrina’s landfall, the scale of devastation in New Orleans and along the Gulf Coast was coming into harrowing focus. Levee failures had left much of the city underwater, tens of thousands of residents were stranded at the Superdome and Convention Center, and rescue operations strained to keep pace with need. Television images of flooded neighborhoods, rooftop rescues, and desperate pleas for aid sparked national debate about disaster preparedness, race, and poverty in America. In the months and years that followed, Katrina reshaped federal emergency management policies and urban planning along vulnerable coasts.

  • Arts & Culture2006

    Stolen Munch Masterpieces “The Scream” and “Madonna” Are Recovered

    On August 31, 2006, Norwegian police announced they had recovered two Edvard Munch paintings, “The Scream” and “Madonna,” stolen at gunpoint from the Munch Museum in Oslo two years earlier. The brazen 2004 theft had shocked the art world, not least because it targeted one of the most recognizable images in modern art. The works were found in a police operation carried out in cooperation with the museum and art experts, who later undertook extensive restoration to repair damage. Their return restored key pieces of Norway’s cultural heritage and highlighted the challenges of protecting iconic artworks.

  • U.S. History2010

    U.S. Formally Ends Its Combat Mission in Iraq

    On August 31, 2010, President Barack Obama announced that the U.S. combat mission in Iraq had officially ended, transitioning to “Operation New Dawn” focused on advising and assisting Iraqi forces. The change came more than seven years after the 2003 invasion and followed a steady drawdown of American troops. While tens of thousands of U.S. service members remained, their role shifted away from direct combat operations. The milestone marked a political and symbolic turning point in a conflict that had deeply shaped U.S. foreign policy and domestic debate in the early 21st century.

  • Famous Figures2012

    A Rare “Blue Moon” Rises Shortly After Neil Armstrong’s Death

    On the night of August 31, 2012, skywatchers around the world saw a “blue moon,” the second full moon in a single calendar month. The event came less than a week after the death of Neil Armstrong, the first person to walk on the Moon, prompting many people and commentators to link the astronomical quirk to his passing. While the term “blue moon” has nothing to do with color, its rarity gave the moment a poetic resonance. Informal tributes that evening ranged from telescope gatherings to quiet looks upward, honoring Armstrong’s role in human space exploration.

  • World History2016

    Brazil’s Senate Votes to Impeach President Dilma Rousseff

    On August 31, 2016, Brazil’s Federal Senate voted to remove President Dilma Rousseff from office, concluding a months-long impeachment process. Rousseff, a former guerrilla and the country’s first female president, was accused of breaking budgetary laws to mask the size of Brazil’s deficit, charges she denied. The decision installed her vice president, Michel Temer, as president and deepened political polarization in a country already grappling with recession and major corruption scandals. The impeachment reshaped Brazil’s political landscape and fueled ongoing debates about accountability, democracy, and the use of impeachment as a political tool.