
Albrecht Dürer
A German artist who fused meticulous Northern detail with Italian grandeur, making prints a major art form and spreading his vision across Europe.
Japan launched IKAROS, the first spacecraft to successfully demonstrate solar sail technology in interplanetary space, propelled by the pressure of sunlight itself.
A thin, square membrane of polyimide 14 meters on a side and thinner than a human hair unfurled 7.7 million kilometers from Earth. It had no rockets. Its engine was sunlight. On May 21, 2010, the Japan Aerospace Exploration Agency (JAXA) confirmed the full deployment of the solar sail on its IKAROS spacecraft, launched six days prior. The vessel was a technological proof-of-concept: to move through space using the minute but constant pressure of photons striking its reflective, ultrathin surface.
The mission succeeded. By adjusting the reflectivity of sections of the sail, IKAROS demonstrated controlled acceleration and navigation. It spun for stability, its 0.5-gram thin-film solar cells generating a trickle of power. By December of that year, it flew past Venus, completing its primary objective. The spacecraft continued to communicate for years, a silent kite on the solar wind.
Solar sailing offers a paradigm for deep-space travel. It requires no conventional fuel, only an initial push to escape Earth's gravity. Acceleration is slow but continuous, allowing probes to build tremendous speed over time for missions to the outer solar system or as sentinels for solar weather. IKAROS proved the physics worked outside the theoretical realm.
The legacy of IKAROS is one of elegant engineering. It was not the first attempt, but it was the first definitive success. Subsequent missions, like NASA's NEA Scout and the Planetary Society's LightSail 2, trace their lineage to that spinning square of film. It redefined propulsion, trading explosive chemical thrust for the patient, inexhaustible push of starlight.
Indonesian President Suharto resigned after 32 years of authoritarian rule, triggered by the fatal shooting of student protesters and the collapse of the economy.
The crack of sniper fire on May 12, 1998, killed four students at Trisakti University. Their funerals became mass protests. By May 21, a quarter of a million people surrounded the parliament building in Jakarta. Inside, Suharto’s political allies deserted him. At 9 a.m., the man who had ruled Indonesia with an iron fist for 32 years announced his resignation on national television. He spoke for seven minutes. Vice President B.J. Habibie was sworn in immediately. The crowd outside did not celebrate a victory; they demanded Suharto stand trial.
Suharto’s New Order regime was built on anticommunist purges, centralized control of the military, and a patronage system that enriched his family. The 1997 Asian financial crisis shattered the economy, exposing the corruption. The rupiah lost 80 percent of its value. Prices for basic goods soared. The student-led reformasi movement gave a voice to the public fury.
His resignation was not a revolution but a transfer within the existing power structure. Habibie was his protégé. The military retained significant influence. Yet the act broke the spell of invincibility. It initiated a chaotic but genuine transition, leading to Indonesia’s first free parliamentary elections in 1999 and the eventual direct election of presidents.
The event matters for its demonstration of cumulative pressure. Economic collapse, targeted violence, and sustained popular mobilization can dismantle even the most entrenched autocracy. Suharto’s fall did not create a perfect democracy, but it closed a chapter defined by fear and opened one defined by volatile, contested politics.
Ringling Bros. and Barnum & Bailey Circus performed its last show, ending 146 years of a uniquely American entertainment tradition.
The human cannonball fired for the final time. The last elephant lumbered out of the spotlight. At the Nassau Veterans Memorial Coliseum on May 21, 2017, Ringling Bros. and Barnum & Bailey Circus concluded its 146-year run with a subdued evening performance. There were no public tears from the performers, only a precise execution of the show they called “Out of This World.” After the final pose, the cast took a bow. The house lights came up. The era of the American three-ring circus was over.
The decline was protracted. Animal rights activism eroded a core attraction; the company retired its elephant acts in 2016, which accelerated a drop in ticket sales. Changing tastes and the fragmented modern entertainment landscape made the traveling spectacle seem anachronistic and expensive. The final show was not a sell-out.
Its closure was a business decision, but its cultural footprint was vast. For generations, the circus provided a shared, visceral experience of danger and wonder. It was a mobile city of performers and laborers, a self-contained world with its own language and laws. The big top was a place where children saw humans perform the physically impossible.
The legacy is now archival. The skills—high-wire walking, clowning, animal training—persist in niche communities and contemporary performance art, but the specific institution that standardized them is gone. The circus’s end marked the extinction of a particular form of American gathering, one predicated on a collective gasp in a darkened arena.
France passed a law recognizing the Atlantic slave trade and slavery as crimes against humanity, a legislative act of memory that sparked ongoing debate about national history and reparations.
The French parliament did not issue an apology. It passed a law. The Loi Taubira, named after its sponsor Christiane Taubira, was adopted on May 21, 2001. Its first article is declarative: “The French Republic recognizes that the Atlantic slave trade and slavery perpetrated from the fifteenth century in the Americas, the Caribbean, the Indian Ocean and Europe against African, Amerindian, Malagasy and Indian peoples constitute a crime against humanity.” The text mandated school curricula teach the subject and established a national committee of memory.
The law’s power was symbolic and pedagogical. It shifted the legal and historical framing of slavery from an economic system to a moral category of state-sanctioned violence. It provided a foundation for activist groups to demand greater public acknowledgment, influencing the creation of a national day of remembrance on May 10.
Opposition was immediate and came from multiple angles. Some historians argued it imposed a modern judicial framework on the past, potentially stifling academic study. Some politicians from the right warned it promoted a divisive “repentance” of French history. The law explicitly rejected financial reparations to individuals, focusing instead on the duty of memory.
Its impact is measured in plaques, curricula, and continued tension. It made the slave trade a central, legally-defined component of French national history, not a peripheral footnote. The law itself became a battleground, cited in debates about identity, colonialism, and how a nation contends with the violent chapters of its past. It proved that official recognition is not an endpoint, but a new beginning for historical argument.
Christian radio broadcaster Harold Camping declared May 21, 2011, as the date for the Biblical Rapture, sparking a global media frenzy and the quiet disillusionment of his followers.
Billboards with a stark date—MAY 21—appeared in over a thousand cities worldwide. The message, funded by more than $100 million in donations, was unambiguous: “Judgment Day.” For Harold Camping, an 89-year-old civil engineer turned radio evangelist, his biblical numerology was irrefutable. The Rapture would occur at 6 p.m. local time, beginning with a global earthquake. The righteous would ascend to heaven. Five months of torment would follow before the world’s final destruction on October 21.
Camping’s prediction was not his first; he had previously named September 1994. His followers, many of whom left jobs and sold possessions, trusted his elaborate calculations based on dates from Genesis and the significance of the number five. Media outlets covered the phenomenon with a mix of alarm and bemusement, interviewing believers and skeptics as the clock ticked down.
May 21 passed without incident. In New Zealand, the first time zone to reach the hour, nothing happened. The non-event rippled westward with the setting sun. Camping initially suggested a “spiritual” judgment had occurred, but the physical world remained stubbornly intact. By October, he was silent, and his organization, Family Radio, faced financial ruin and a crisis of faith among its audience.
The event is a case study in the durability of apocalyptic belief. It demonstrated how media amplification can transform a fringe prediction into a global cultural moment. For sociologists, it highlighted the mechanisms of cognitive dissonance: how believers rationalize a failed prophecy, often by spiritualizing the outcome rather than abandoning the prophet. The billboards came down. The world continued. The question of why it resonated remained.