July 24 in History | This Day in History | The Book Center
THIS DAY IN HISTORY
JULY
24

July 24 wasn’t just another summer day.

It has been a date for revolutions, voyages, breakthroughs, and spotlights that lit up people and ideas across centuries.

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WORLD HISTORY
4

Tiberius Adopted by Augustus as Imperial Heir

On July 24 in the year 4, the Roman emperor Augustus formally adopted his stepson Tiberius, positioning him as the official heir to the empire. The Senate ratified the arrangement, and Tiberius in turn adopted Germanicus, tightening the Julio-Claudian family’s grip on succession. This carefully staged transfer of power helped prevent a contested throne after Augustus’s long reign and set the tone for dynastic politics in Rome. The decision ultimately led to Tiberius becoming emperor in 14, shaping the empire’s governance in the early first century.

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WORLD HISTORY
1411

Peace of Selymbria Ends One Phase of the Ottoman Interregnum

On July 24, 1411, the Peace of Selymbria was concluded between the Byzantine emperor Manuel II Palaiologos and the Ottoman prince Musa Çelebi. According to contemporary chronicles, the treaty recognized Musa’s authority in parts of the fractured Ottoman realm in exchange for concessions to Byzantium. The agreement was part of the wider Ottoman Interregnum, a turbulent civil-war period after the defeat of Bayezid I at Ankara. Though short‑lived, the peace highlighted how a weakened Byzantine Empire could still maneuver among rival claimants to the sultanate.

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WORLD HISTORY
1567

Mary, Queen of Scots Forced to Abdicate the Scottish Throne

On July 24, 1567, Mary, Queen of Scots was compelled to abdicate in favor of her infant son, James VI of Scotland. Noble factions, alarmed by Mary’s controversial marriage to James Hepburn, Earl of Bothwell, and the political turmoil that followed, pressed her to step down while she was imprisoned at Loch Leven Castle. Her abdication cleared the way for a Protestant regency governing on behalf of the young king. The power shift deepened Scotland’s religious and political transformation and set the stage for James VI’s later accession to the English throne as James I.

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WORLD HISTORY
1568

Battle of Jemmingen in the Dutch Revolt

On July 24, 1568, Spanish forces under Fernando Álvarez de Toledo, the Duke of Alba, crushed Dutch rebel troops at the Battle of Jemmingen in present‑day Netherlands. Rebel leader Louis of Nassau commanded a largely inexperienced army that broke under concentrated Spanish artillery and disciplined infantry assaults. Thousands of rebels were killed or captured, dealing an early and painful setback to the nascent Dutch Revolt against Habsburg rule. The defeat highlighted the military challenge facing those who sought independence but did not extinguish the rebellion that would continue for decades.

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WORLD HISTORY
1701

Treaty of The Hague Aligns Powers Before the War of the Spanish Succession

On July 24, 1701, England, the Dutch Republic, and the Holy Roman Emperor signed a Treaty of The Hague forming a new alliance against Bourbon expansion. The agreement responded to the looming crisis over the Spanish throne after the death of Charles II of Spain and the prospect of a united French–Spanish Bourbon bloc. By coordinating military and diplomatic efforts, the treaty laid the groundwork for the Grand Alliance that would fight France in the War of the Spanish Succession. The resulting conflict reshaped the European balance of power in the early 18th century.

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SCIENCE & INDUSTRY
1720

South Sea Bubble Peaks on the London Stock Market

On July 24, 1720, shares of the South Sea Company reached one of their highest recorded prices in London, hovering around £1,000. The company, granted a monopoly on British trade in South America, had fueled wild speculation with promises of enormous profits that never materialized. Contemporary accounts describe frenzied trading in Exchange Alley, as fortunes were made on paper in a matter of weeks. Within months, the bubble collapsed, ruining many investors and prompting tighter scrutiny of speculative finance in Britain.

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WORLD HISTORY
1783

Georgia Becomes a Russian Protectorate by the Treaty of Georgievsk

On July 24, 1783, representatives of the Russian Empire and the eastern Georgian kingdom of Kartli-Kakheti signed the Treaty of Georgievsk. The treaty placed the Georgian monarchy under Russian protection in exchange for allegiance to the Russian tsar and limits on Georgia’s independent foreign policy. Georgian rulers sought security against Persian and Ottoman incursions, while Russia gained influence in the Caucasus region. The agreement foreshadowed deeper Russian involvement and eventual annexation of Georgian territories in the 19th century.

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U.S. HISTORY
1847

Brigham Young and Mormon Pioneers Reach the Salt Lake Valley

On July 24, 1847, Brigham Young and the main company of Latter-day Saint pioneers entered Utah’s Salt Lake Valley after a grueling trek west. According to church histories, Young, ill and riding in a wagon, surveyed the desert basin and is said to have declared, “This is the right place.” The group began laying out irrigation ditches and a grid of streets almost immediately, turning arid land into a planned settlement. Their arrival marked the founding of what would become Salt Lake City and a new religious and cultural center in the American West.

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U.S. HISTORY
1847

The Cayuse Five Sentenced in Oregon Territory

On July 24, 1847, five Cayuse men, later known as the “Cayuse Five,” were tried and sentenced in Oregon City for the killing of missionary Marcus Whitman and others at the Whitman Mission in 1847. The trial, conducted under territorial law, reflected deep tensions between Native communities and the growing tide of American settlers along the Oregon Trail. Many Cayuse witnesses could not participate fully, given language barriers and cultural differences in concepts of responsibility and justice. The executions that followed the sentencing became a lasting point of controversy in the region’s memory of frontier conflict.

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SCIENCE & INDUSTRY
1866

Successful Laying of the Permanent Transatlantic Telegraph Cable

On July 24, 1866, the steamship Great Eastern completed the laying of a new transatlantic telegraph cable between Valentia Island, Ireland, and Heart’s Content, Newfoundland. Engineers had struggled for years with broken cables and technical failures in the deep Atlantic, but this heavier, better-insulated line finally proved reliable. When the first clear messages passed continuously across the ocean, governments and businesses gained a communications link that cut response times from weeks to minutes. The line became a backbone of 19th‑century global trade and diplomacy, proving the practicality of long‑distance submarine telegraphy.

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U.S. HISTORY
1877

Federal Troops Clash with Strikers in the Great Railroad Strike

On July 24, 1877, federal troops and state militia confronted striking railroad workers in several U.S. cities during the Great Railroad Strike of 1877. Demonstrations and work stoppages that had begun in West Virginia over wage cuts had spread along major rail lines to hubs such as Pittsburgh and Chicago. As troops cleared tracks and guarded depots, violent skirmishes erupted, with cars and railroad property set ablaze and dozens of people killed over several days. The confrontations on and around July 24 underscored the growing power of industrial labor and the willingness of government to intervene on behalf of rail corporations.

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WORLD HISTORY
1901

Siege of the Taku Forts Ends in the Boxer Rebellion Aftermath

On July 24, 1901, foreign troops completed operations securing the Taku Forts near Tianjin, China, as part of the intervention following the Boxer Rebellion. The forts, which guarded the approaches to Beijing via the Hai River, had been heavily contested the previous year but remained a focal point in the negotiations that followed. Control of the forts allowed the allied powers to maintain military pressure while diplomats hammered out the Boxer Protocol. That settlement imposed heavy indemnities and new foreign concessions, deepening imperial influence over the Qing Empire.

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SCIENCE & INDUSTRY
1911

Hiram Bingham Reaches the Site of Machu Picchu

On July 24, 1911, Yale historian and explorer Hiram Bingham, guided by local Quechua farmers, reached the Inca site now known as Machu Picchu in Peru. While the ruins were known to people in the region, Bingham’s visit, photographs, and subsequent publications brought the mountaintop citadel to international attention. He documented terraces, temples, and dwellings perched among the clouds, igniting global fascination with Inca civilization and Andean archaeology. His expedition also raised enduring questions about artifact removal and the stewardship of cultural heritage.

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WORLD HISTORY
1943

Operation Gomorrah: Allied Bombing of Hamburg Begins

On the night of July 24, 1943, the Royal Air Force launched the first major raid of Operation Gomorrah against Hamburg, Germany, during World War II. Waves of bombers targeted industrial districts and port facilities, using radar-countermeasure “window” (strips of foil) to confuse German air defenses. Over the following days, combined RAF and U.S. Army Air Forces attacks inflicted devastating damage, including a firestorm that ravaged parts of the city. The campaign severely disrupted German war production in the region and marked a grim escalation in the air war over Europe.

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ARTS & CULTURE
1959

“Kitchen Debate” Between Nixon and Khrushchev in Moscow

On July 24, 1959, U.S. Vice President Richard Nixon and Soviet Premier Nikita Khrushchev engaged in the famous “Kitchen Debate” at the American National Exhibition in Moscow. Standing in a model suburban kitchen packed with modern appliances, the two leaders sparred over living standards, technology, and the merits of capitalism versus communism. Journalists and television cameras captured Khrushchev’s gesturing and Nixon’s pointed replies, turning the impromptu exchange into a Cold War cultural spectacle. The debate illustrated how refrigerators, washing machines, and color televisions became symbols in a global contest of ideologies.

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FAMOUS FIGURES
1963

Birth of NBA Star Karl Malone

On July 24, 1963, Karl Malone was born in Summerfield, Louisiana. Nicknamed “The Mailman” for reliably delivering points, Malone became one of the most prolific power forwards in NBA history, spending the bulk of his career with the Utah Jazz. Alongside point guard John Stockton, he anchored a pick‑and‑roll offense that carried the Jazz to multiple deep playoff runs and two NBA Finals appearances. His scoring totals, durability, and Olympic appearances with the U.S. “Dream Team” turned him into a defining basketball figure of the 1990s.

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SCIENCE & INDUSTRY
1969

Apollo 11 Astronauts Splash Down After First Moon Landing

On July 24, 1969, Apollo 11 astronauts Neil Armstrong, Buzz Aldrin, and Michael Collins safely splashed down in the Pacific Ocean after completing humanity’s first crewed lunar landing. Their command module, Columbia, hit the water southwest of Hawaii, where U.S. Navy recovery teams from the aircraft carrier USS Hornet brought the crew aboard. The astronauts were placed in a quarantine facility as scientists cautiously assessed any potential biological risks from the Moon. The triumphant recovery closed an eight‑day mission that fulfilled a central goal of the U.S. space program and became a defining moment of the 20th century.

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U.S. HISTORY
1974

Supreme Court Orders Nixon to Turn Over Watergate Tapes

On July 24, 1974, the United States Supreme Court issued its unanimous decision in United States v. Nixon, ruling that President Richard Nixon had to release tape recordings subpoenaed in the Watergate investigation. The Court acknowledged a limited claim of executive privilege but held that it could not override the judicial process in a criminal trial. Within days, the tapes’ contents—including the so‑called “smoking gun” conversation—became public, revealing efforts to obstruct justice. The ruling dealt a devastating blow to Nixon’s political support and directly preceded his resignation on August 8.

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ARTS & CULTURE
1983

George Brett’s “Pine Tar Game” Erupts at Yankee Stadium

On July 24, 1983, Kansas City Royals star George Brett hit a go‑ahead home run against the New York Yankees at Yankee Stadium, only to have it nullified in what became known as the “Pine Tar Game.” After the homer, Yankees manager Billy Martin challenged Brett’s bat, arguing that pine tar extended too far up the barrel under Major League Baseball rules. The umpires called Brett out, prompting his famously furious charge from the dugout, a scene replayed endlessly on sports broadcasts. American League president Lee MacPhail later ruled the home run should stand, turning the incident into a legendary episode in baseball lore and televised sports culture.

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ARTS & CULTURE
2005

Lance Armstrong Wins a Seventh Straight Tour de France

On July 24, 2005, American cyclist Lance Armstrong rode down the Champs-Élysées in Paris to secure his seventh consecutive overall victory in the Tour de France. Television images showed him sipping champagne with teammates and acknowledging crowds as the peloton completed its ceremonial final laps. At the time, his run of wins was celebrated as an unprecedented feat in professional cycling and a powerful comeback story after cancer. Years later, after extensive investigations and his own admissions of doping, the Tour stripped Armstrong of his titles, transforming the memory of that day into a cautionary tale about performance-enhancing drugs and sports hero worship.

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INVENTIONS
2008

Google Launches Knol as an Expert Article Platform

On July 24, 2008, Google publicly launched Knol, an online publishing platform designed to showcase expert-written articles on specific topics. Announced as a way to highlight named authors and their credentials, Knol contrasted with the collaborative, anonymous editing model popularized by Wikipedia. The service provided tools for formatting, references, and even revenue sharing, experimenting with how knowledge and authorship might work on the open web. Although Knol never achieved broad adoption and was later discontinued, it reflected an inventive phase in web publishing where companies tested new formats for organizing and crediting information online.