May 16 in History

Greek revolutionaries raised the banner of independence against the Ottoman Empire in March 1821, beginning a war that combined genuine national liberation with Great Power interference and brutal atrocities on all sides. The uprising drew on centuries of Greek resentment against Ottoman rule, the influence of Enlightenment ideas about national self-determination, and the organizational efforts of secret societies like the Filiki Eteria that had been recruiting members throughout the Greek diaspora. The early years of the war were chaotic and savage. Greek rebels massacred Turkish and Muslim civilians in the Peloponnese during the initial uprising. The Ottomans retaliated by hanging the Ecumenical Patriarch Gregory V from the gate of the patriarchate in Constantinople on Easter Sunday 1821 and slaughtering the Greek population of Chios in 1822. The Chios massacre, immortalized in a painting by Delacroix, shocked European public opinion and generated enormous sympathy for the Greek cause. The war might have ended in Ottoman victory had the Great Powers not intervened. Russia, Britain, and France all had strategic interests in the eastern Mediterranean and ideological reasons to support Christian Greeks against Muslim Turks. Lord Byron's death at Missolonghi in 1824 turned the Greek cause into a romantic crusade. The decisive moment came at the Battle of Navarino on October 20, 1827, when a combined British, French, and Russian fleet destroyed the Ottoman-Egyptian navy, effectively guaranteeing Greek independence. The London Protocol of 1830 formally recognized Greece as an independent state, the first nation to break away from the Ottoman Empire through revolution. The new country was tiny, comprising only the Peloponnese and a strip of central Greece, and was saddled with a Bavarian king imposed by the Great Powers. But the principle of national self-determination it represented inspired liberation movements across the Balkans and beyond throughout the nineteenth century.

Electrical power traveled 175 kilometers through a wire on May 16, 1891, proving that alternating current could be transmitted over distances that made centralized power generation practical. The demonstration, staged at the International Electrotechnical Exhibition in Frankfurt, transmitted three-phase AC from a hydroelectric plant in Lauffen am Neckar to Frankfurt, lighting bulbs and powering a pump at the exhibition with only 25 percent energy loss. The crowd understood immediately what they were witnessing. The experiment resolved the most contentious technological debate of the late nineteenth century. Thomas Edison's direct current system could only transmit power about a mile from its generating station, requiring a power plant in every neighborhood. George Westinghouse and Nikola Tesla championed alternating current, which could be stepped up to high voltage for transmission and stepped down for local use. The Lauffen-Frankfurt demonstration provided dramatic proof that AC was the superior system. The engineers behind the demonstration, Oskar von Miller and Charles Eugene Lancelot Brown, used a transformer to step up the voltage to 15,000 volts for transmission and step it back down at the exhibition. The three-phase system they employed, originally developed by Mikhail Dolivo-Dobrovolsky, proved more efficient than single-phase AC for both transmission and powering motors. This three-phase architecture became the global standard for electrical grids. Within a decade of the Frankfurt demonstration, long-distance AC transmission networks began spreading across Europe and North America. The first major American installation, a hydroelectric plant at Niagara Falls transmitting power to Buffalo in 1896, used technology directly descended from the Lauffen-Frankfurt experiment. Edison's DC system was effectively finished. The three-phase AC grid architecture proven at Frankfurt in 1891 remains the fundamental design of the electrical systems powering the modern world.

Soviet Premier Nikita Khrushchev stood before the assembled leaders of the Cold War's major powers in Paris on May 16, 1960, and demanded that President Eisenhower apologize for American spy flights over Soviet territory. Eisenhower refused. The Paris Summit, which had been expected to produce progress on nuclear arms control and the status of Berlin, collapsed before it began. The U-2 incident had blown the fragile detente of the late 1950s apart. Two weeks earlier, on May 1, Soviet air defenses had shot down an American U-2 reconnaissance aircraft piloted by Francis Gary Powers near Sverdlovsk. The Eisenhower administration initially claimed the plane was a weather research aircraft that had strayed off course. Khrushchev then revealed that Powers had survived, that the Soviets had recovered the aircraft and its cameras, and that the pilot had confessed to espionage. The cover story disintegrated, humiliating the American government. Eisenhower made the unprecedented decision to publicly acknowledge the spy flights and take personal responsibility, reasoning that denying knowledge would have implied his government was operating without presidential control. The admission gave Khrushchev the ammunition he needed. Whether he intended to torpedo the summit all along or was forced by domestic pressure from Soviet hardliners remains debated. His performance in Paris was theatrical, pounding the table and demanding an apology he knew Eisenhower could not give. The summit's collapse ended the most promising period of Cold War diplomacy since Stalin's death. Plans for Eisenhower to visit Moscow were canceled. Arms control negotiations stalled. The relationship between the superpowers deteriorated through the Berlin Wall crisis of 1961 and the Cuban Missile Crisis of 1962. Powers was convicted of espionage in Moscow and sentenced to ten years, but was exchanged for Soviet spy Rudolf Abel in 1962 on Berlin's Glienicke Bridge.

A burst of deep red light from a synthetic ruby crystal changed the world on May 16, 1960. Theodore Maiman, working at Hughes Research Laboratories in Malibu, California, fired the first functioning laser by wrapping a flashtube around a ruby rod and pulsing it with high-intensity light. The ruby's chromium atoms absorbed the energy and emitted a coherent beam of light at 694 nanometers, a wavelength in the deep red spectrum. The pulse lasted less than a millisecond, but it solved a problem that had occupied physicists for decades. Albert Einstein had predicted the theoretical basis for stimulated emission in 1917, and Charles Townes had built the first maser (using microwaves rather than visible light) in 1954. But producing a working optical laser proved enormously difficult. Multiple research teams raced toward the goal, including groups at Bell Labs, Columbia University, and the Technical Research Group. Maiman, working with a small team and modest budget, beat them all by choosing ruby as his lasing medium when most physicists believed it unsuitable. The physics community initially dismissed the laser as "a solution looking for a problem." No one could articulate a practical application for a beam of coherent light. Bell Labs researcher Irnee D'Haenens joked that it was a solution in search of a problem. Within a few years, that joke looked spectacularly shortsighted as applications proliferated across medicine, communications, manufacturing, and military technology. Lasers now read barcodes, perform eye surgery, cut industrial steel, transmit data through fiber optic cables, guide precision munitions, and measure distances to the Moon with centimeter accuracy. The global laser market exceeds $20 billion annually. Maiman's ruby laser sits in a museum, but its descendants are embedded in virtually every sector of the modern economy. Few inventions have so thoroughly vindicated the pursuit of basic science without a predetermined commercial application.

Two hundred seventy guests paid five dollars each for a banquet dinner at the Hollywood Roosevelt Hotel on May 16, 1929, and watched the first Academy Awards ceremony conclude in roughly fifteen minutes. The winners had been announced three months earlier, draining the evening of any suspense. Emil Jannings received Best Actor for two films, Janet Gaynor won Best Actress for three, and Wings took Outstanding Picture. The statuettes, not yet called Oscars, were handed out between courses. The Academy of Motion Picture Arts and Sciences had been founded just two years earlier by Louis B. Mayer, ostensibly to elevate the art of filmmaking but primarily to mediate labor disputes and forestall unionization in the studio system. The awards were conceived as a way to generate prestige for the industry and give the Academy public visibility. The first ceremony's modest scale bore no resemblance to the global television spectacle it would become. The winning films reflected Hollywood's transition from silent pictures to talkies. Wings, a World War I aviation epic, was the last pure silent film to win the top prize. By the following year's ceremony, sound films dominated the nominations. The Academy created a separate category for "Best Production, Unique and Artistic" that first year, awarding it to Sunrise: A Song of Two Humans, which many critics considered the superior film. The ceremony grew rapidly in cultural significance. By the 1930s, the awards had become the film industry's most important marketing event. The nickname "Oscar" became standard by 1939, though its origin remains disputed. The broadcast moved to radio in 1944 and television in 1953, eventually reaching a global audience of hundreds of millions. That intimate dinner at the Roosevelt Hotel launched an institution that has shaped film production, distribution, and cultural conversation for nearly a century.