September 4 in History

Forty-four settlers walked north from the San Gabriel Mission on September 4, 1781, and founded El Pueblo de Nuestra Senora La Reina de los Angeles de Porciuncula on a sun-baked plain along the Los Angeles River. The group included 11 men, 11 women, and 22 children, drawn from the diverse population of colonial Mexico: Indigenous, African, mestizo, and Spanish. Governor Felipe de Neve had personally recruited the settlers to establish an agricultural community that would supply food to the military presidios defending Spain's tenuous hold on Alta California. The founding party reflected the complex racial dynamics of New Spain. Census records from the settlement's first years show that more than half the original settlers were of African or mixed African descent, a demographic reality largely erased from the city's popular mythology. The pueblo's land was laid out according to Spanish colonial law, with a central plaza, surrounding house lots, and communal agricultural fields irrigated by a system of zanjas, or open ditches, that channeled water from the river. For its first century, Los Angeles remained a small, dusty ranching town. The population reached only about 1,600 by the time the United States seized California during the Mexican-American War in 1847. The arrival of the transcontinental railroad in 1876 and a subsequent real estate boom in the 1880s began the transformation from sleepy pueblo to major city. The discovery of oil in the 1890s, the development of the port at San Pedro, and the construction of the Los Angeles Aqueduct, which brought water from the Owens Valley 233 miles away, fueled explosive growth in the early twentieth century. The pueblo that 44 settlers scratched out of the Southern California dirt became the second-largest city in the United States, home to nearly four million people within city limits and over 13 million in the metropolitan area. Its founding party, smaller than a school bus full of passengers, planted a seed that grew into the entertainment capital of the world.

Geronimo, the Apache war leader whose name had become synonymous with resistance across the American Southwest, surrendered to General Nelson Miles in Skeleton Canyon, Arizona, on September 4, 1886, ending nearly three decades of Apache warfare against Mexico and the United States. The surrender came after a grueling pursuit in which 5,000 U.S. Army troops, roughly one-quarter of the entire standing army, had chased Geronimo and a band of just 38 Apaches, including women and children, through the mountains of the Sierra Madre. Geronimo was not a chief but a medicine man and war leader of the Chiricahua Apache whose family had been murdered by Mexican soldiers in 1851. That massacre transformed him into a relentless warrior who conducted raids on both sides of the border for over three decades. He had surrendered and been confined to reservations multiple times, only to break out again when conditions became intolerable. His final breakout from the San Carlos Reservation in May 1885 with 35 warriors and 109 women and children triggered the largest military operation against Native Americans in the Indian Wars. Miles, who replaced General George Crook after Crook's resignation over disagreements about Apache policy, employed Apache scouts and a system of heliograph communication across mountain peaks to track Geronimo through the most forbidding terrain in North America. Lieutenant Charles Gatewood, who had earned Geronimo's respect, entered the Apache camp alone and persuaded the leader to negotiate. Miles promised Geronimo that his people would be reunited with their families and eventually given a reservation in the Southwest. Neither promise was kept. Geronimo and the Chiricahua Apache, including the scouts who had helped capture him, were shipped as prisoners of war to Florida, then Alabama, and finally Fort Sill, Oklahoma. Geronimo spent the remaining 23 years of his life as a prisoner, becoming a celebrity who appeared at the 1904 World's Fair and rode in Theodore Roosevelt's inaugural parade, yet was never permitted to return home. He died of pneumonia at Fort Sill in 1909, still a prisoner of war.

George Eastman registered the trademark "Kodak" and received a patent for his portable roll-film camera on September 4, 1888, placing photography within reach of millions of people who had never touched a camera before. The device, sold for $25 with a 100-exposure roll of film pre-loaded, came with a remarkable promise: "You press the button, we do the rest." When the roll was finished, the customer mailed the entire camera to Eastman's factory in Rochester, New York, where the film was developed, prints were made, and the camera was reloaded and returned. Photography before Eastman required technical expertise, expensive equipment, and access to darkroom chemicals. Professionals used heavy glass-plate cameras that demanded precise knowledge of exposure, development, and printing. Eastman, a former bank clerk who had taught himself photography and became frustrated with its complexity, spent years perfecting a flexible film that could replace the fragile glass plates. His breakthrough was a paper-backed film coated with a gelatin emulsion, later replaced by the transparent celluloid film that became the industry standard. Eastman invented the word "Kodak" deliberately, wanting a trademark that was short, distinctive, pronounceable in any language, and could not be associated with anything else. He later described his process: "The letter K had been a favorite with me. It seems a strong, incisive sort of letter. I tried a great number of combinations of letters that made words starting and ending with K." The name had no meaning, which was precisely the point. The Kodak camera democratized visual memory. Family milestones, vacations, and everyday life could now be recorded by anyone willing to spend a dollar per roll. Eastman's company grew into one of the most dominant corporations of the twentieth century, employing over 145,000 people at its peak. The irony of Kodak's story is that the company that made photography universal failed to adapt when digital technology made film obsolete, filing for bankruptcy in 2012. The revolution Eastman started consumed the empire he built.

President Harry Truman appeared on television screens simultaneously in New York and San Francisco on September 4, 1951, addressing the Japanese Peace Treaty Conference in the first live transcontinental television broadcast in American history. AT&T's new microwave relay system, a chain of 107 towers stretching 2,855 miles across the continent, carried the signal from the War Memorial Opera House in San Francisco to viewers on the East Coast in real time. The technical achievement collapsed the nation's geography, making it possible for Americans on both coasts to witness the same event as it happened. Television before September 4, 1951, was essentially a regional medium. Networks recorded programs on kinescope, a process that filmed a television monitor, and shipped the grainy copies to stations in other cities for delayed broadcast. Live programming reached only as far as the coaxial cables that connected stations within the same region. The transcontinental link required AT&T to build a network of microwave towers, each within line of sight of the next, that could relay video signals across mountains, deserts, and plains at the speed of light. The broadcast of the Japanese Peace Treaty Conference was chosen partly for its diplomatic significance. The treaty, which formally ended the state of war between Japan and 48 Allied nations, restored Japanese sovereignty and marked the country's reentry into the international community six years after its devastating defeat. The ceremony was a momentous diplomatic event that the new coast-to-coast link made accessible to millions of viewers simultaneously. The transcontinental broadcast transformed television from a local curiosity into a national medium virtually overnight. Within weeks, entertainment programming followed the news, and the three networks began building the national broadcast infrastructure that would dominate American culture for the next four decades. The ability to share live experiences across 3,000 miles changed how Americans consumed news, sports, politics, and entertainment, binding a continent-spanning nation together through a shared screen.

Thomas Edison's chief electrician pulled a switch at the Pearl Street Station in lower Manhattan on September 4, 1882, and electrical current flowed through underground copper lines to illuminate 400 lamps in the offices of 59 customers within a one-square-mile radius. The world's first commercial central power station had come to life, generating 110 volts of direct current from six dynamos driven by steam engines, and the electrical age had a working business model. J.P. Morgan's office at 23 Wall Street was among the first to glow with Edison's incandescent bulbs. Edison had spent three years building toward this moment, and the Pearl Street project represented far more than a power plant. He had designed an entire system from generation to consumption: the dynamos, the underground distribution network, the junction boxes, the meters to track usage, and the light bulbs themselves. No single component was revolutionary in isolation, but the integrated system was unlike anything the world had seen. Edison treated electrical distribution the way a modern software engineer treats a full stack, owning every layer from the copper wires in the conduit to the filament in the bulb. The station's first day of operation served a tiny footprint, roughly bounded by Wall Street, Nassau Street, Spruce Street, and the East River. Each customer paid roughly the same rate they had been paying for gas lighting, a deliberate pricing decision by Edison to make adoption painless. The system was reliable enough that within a year, Pearl Street was serving over 500 customers with more than 10,000 lamps. Competitors noticed. Within two decades, central power stations were lighting cities across America and Europe. Pearl Street Station burned in a fire in 1890, but by then the model it demonstrated was unstoppable. George Westinghouse and Nikola Tesla's competing alternating current system would eventually prove superior for long-distance transmission, winning the "War of Currents" and enabling the massive power grids that define modern civilization. Edison's station was the spark. Every light switch, appliance, and device plugged into a wall traces its lineage to the six dynamos humming on Pearl Street.

General Robert E. Lee marched the Army of Northern Virginia across the Potomac River into Maryland on September 4, 1862, carrying the American Civil War into Union territory for the first time. Fresh from his crushing victory over General John Pope at the Second Battle of Bull Run, Lee believed that a successful invasion of the North could win diplomatic recognition from Britain and France, encourage the Northern peace movement, and perhaps end the war before winter. His army of roughly 55,000 men, many of them barefoot and subsisting on green corn and apples, forded the river near Leesburg and advanced toward Frederick, Maryland. The decision to invade was a calculated gamble driven by strategic necessity as much as ambition. Lee's army could not sustain itself in war-ravaged northern Virginia, where both armies had stripped the countryside bare. Moving into Maryland placed his forces on Union soil, where they could forage from untouched farms, and threatened Washington, Baltimore, and even Philadelphia. Lee also hoped that the presence of a Confederate army in a border state would encourage Maryland's substantial pro-Southern population to rally to the Confederate cause. Lee's invasion plan, Special Order 191, divided his army into multiple columns to capture the Union garrison at Harpers Ferry and secure his supply line through the Shenandoah Valley. A copy of the order was famously lost by a Confederate staff officer, wrapped around three cigars, and found by Union soldiers in a field near Frederick. General George McClellan, commanding the Army of the Potomac, received the captured orders and for once moved with uncharacteristic speed to intercept Lee's scattered forces. The campaign culminated on September 17 at the Battle of Antietam near Sharpsburg, Maryland, the bloodiest single day in American history, with roughly 23,000 casualties on both sides. Lee was forced to retreat back across the Potomac, and the failed invasion gave Abraham Lincoln the victory he needed to issue the Emancipation Proclamation, transforming the war from a fight to preserve the Union into a war to end slavery.