April 21 wasn’t just another spring day on the calendar.

It was a date of founding myths, royal turns, daring experiments, and cultural firsts that still echo in the present.

WORLD HISTORY753 BC

Traditional Founding of Rome

According to Roman tradition, April 21, 753 BC marks the founding of Rome by the twins Romulus and Remus on the banks of the Tiber River. Ancient writers like Livy and Varro treated this date, known as the dies natalis Romae—the birthday of Rome—as a cornerstone of Roman identity. Each year the city celebrated the Parilia festival around this time, blending earlier shepherd rituals with civic pride. Even though archaeologists debate the precise year, April 21 endured as the symbolic start of the city that would dominate the Mediterranean world.

WORLD HISTORY1509

Henry VIII Becomes King of England

On April 21, 1509, the 17-year-old Henry Tudor became King Henry VIII after the death of his father, Henry VII. His accession ushered in a turbulent reign marked by six marriages, the break with the Roman Catholic Church, and the creation of the Church of England. The young king initially enjoyed broad popularity and a reputation for athleticism and learning. Over time his decisions reshaped English politics, religion, and dynastic alliances across Europe.

U.S. HISTORY1649

Maryland Passes the Toleration Act

On April 21, 1649, the Maryland colonial assembly passed the Toleration Act, one of the earliest laws in North America mandating some degree of religious freedom. The act protected Trinitarian Christians—both Catholic and Protestant—from persecution based on their faith, a notable step in a colony founded as a haven for English Catholics. While the law had sharp limits and was later repealed, it signaled a growing argument that conscience and worship should not be dictated solely by the state. That idea would surface again more than a century later in the First Amendment of the U.S. Constitution.

U.S. HISTORY1789

John Adams Assumes Office as America’s First Vice President

On April 21, 1789, John Adams officially took office as the first vice president of the United States in New York City, then the national capital. Having received the second-highest number of electoral votes after George Washington, Adams stepped into a role the Constitution left somewhat vague. He presided over the Senate and helped shape early debates about executive power and the young republic’s institutions. His vice presidency became a stepping stone to the presidency itself, which he would assume in 1797.

INVENTIONS1792

The Guillotine Used for the First Time in France

On April 21, 1792, the guillotine was used for the first time in Paris to execute a highwayman named Nicolas-Jacques Pelletier. Designed to provide a swift, standardized method of capital punishment, the machine was promoted by reform-minded physicians and deputies as more humane than earlier methods. Crowds turned out to watch this new contrivance in action at the Place de Grève. Within months, the guillotine became a chilling symbol of the French Revolution’s radical phase and the Reign of Terror.

FAMOUS FIGURES1816

Birth of Novelist Charlotte Brontë

On April 21, 1816, Charlotte Brontë was born in Thornton, Yorkshire, England. Raised in a literary household with her sisters Emily and Anne, she would later publish “Jane Eyre” under the pseudonym Currer Bell. The novel’s intense interior life, social critique, and moral tension resonated with Victorian readers and has remained a classic of English literature. Brontë’s brief life left a concentrated legacy that continues to shape discussions of gender, class, and the development of the modern novel.

U.S. HISTORY1836

Texian Forces Win the Battle of San Jacinto

On April 21, 1836, General Sam Houston led Texian troops in a surprise attack on Mexican forces under Antonio López de Santa Anna near the San Jacinto River in present-day Texas. The battle lasted roughly 18 minutes, ending in a decisive victory that effectively secured Texas’s independence from Mexico. Santa Anna was captured the following day, strengthening the Texian position in negotiations. San Jacinto became a foundational story for the Republic of Texas and later the state’s identity within the United States.

WORLD HISTORY1918

“Red Baron” Manfred von Richthofen Shot Down

On April 21, 1918, German flying ace Manfred von Richthofen, known as the “Red Baron,” was shot down and killed over the Western Front near the Somme River. Credited with 80 aerial victories, Richthofen had become a legend of World War I aviation, both feared and admired by opponents. He was brought down while pursuing Allied aircraft at low altitude; debate continues over whether Australian ground fire or Canadian pilot Arthur Roy Brown dealt the fatal shot. Allied forces buried him with full military honors, recognizing the formidable pilot he had been.

FAMOUS FIGURES1926

Birth of Queen Elizabeth II

On April 21, 1926, Princess Elizabeth Alexandra Mary was born in London, the first child of the Duke and Duchess of York. At the time she was not expected to become monarch, but the abdication of her uncle Edward VIII and the death of her father George VI eventually brought her to the throne in 1952. Her reign spanned decolonization, the Cold War, and the digital age, making her a constant presence across rapid change. For decades, crowds gathered every April 21 to mark her “actual” birthday alongside the official birthday celebrated later in the year.

ARTS & CULTURE1934

The Famous “Surgeon’s Photograph” of Loch Ness Is Taken

On April 21, 1934, a photograph later dubbed the “Surgeon’s Photograph” was reportedly taken at Loch Ness in Scotland, appearing to show a long-necked creature in the water. Published in the Daily Mail, the image supercharged modern legend around the Loch Ness Monster and drew waves of tourists and amateur investigators to the Highland lake. Decades later, participants admitted the picture had been staged using a model attached to a toy submarine. Even so, the photo remains an iconic example of how a single image can fuel folklore and popular culture.

WORLD HISTORY1944

French Women Granted the Right to Vote

On April 21, 1944, the provisional government of Free France, led by Charles de Gaulle in Algiers, issued an ordinance granting French women the right to vote and to stand for election. The decision came after years of activism and discussions that had stalled before World War II. When municipal elections were held in 1945, women cast ballots nationwide for the first time, reshaping local councils and national politics. The ordinance placed France in the growing group of countries recognizing women’s suffrage in the mid��20th century.

WORLD HISTORY1945

Allied Forces Liberate Bologna, Italy

On April 21, 1945, Allied troops, including units from the U.S., Britain, and Poland, entered Bologna and liberated the city from German occupation. The advance was part of the final Allied offensive in Italy, pushing Axis forces north toward the Po River. Residents poured into the streets to greet soldiers and mark the end of years of bombing, rationing, and repression. Bologna’s liberation helped clear the way for the collapse of German defenses in northern Italy within days.

WORLD HISTORY1960

Brasília Inaugurated as Brazil’s New Capital

On April 21, 1960, Brazil officially inaugurated Brasília as its new capital city, shifting the seat of government from coastal Rio de Janeiro to the country’s interior. Planned by urbanist Lúcio Costa and architect Oscar Niemeyer, Brasília’s sweeping modernist forms and monumental avenues were designed to symbolize a forward-looking nation. Government ministries, residential superblocks, and cultural buildings rose rapidly on what had been sparsely populated plateau. The move reshaped Brazil’s internal development and stands as one of the 20th century’s boldest experiments in planned urban design.

SCIENCE & INDUSTRY1962

Century 21 Exposition (Seattle World’s Fair) Opens

On April 21, 1962, the Century 21 Exposition—better known as the Seattle World’s Fair—opened its gates. The fair showcased space-age optimism, with exhibits on science, space exploration, and future living, all dominated by the newly built Space Needle. Companies and governments used the site to display cutting-edge technologies, from monorails to advanced telecommunications. When the fair closed six months later, it had drawn millions of visitors and left Seattle with a permanent cultural and scientific hub at Seattle Center.

ARTS & CULTURE1965

Second Season of the 1964–65 New York World’s Fair Opens

On April 21, 1965, the second and final season of the 1964–65 New York World’s Fair opened at Flushing Meadows–Corona Park in Queens. Visitors returned to pavilions featuring Disney-designed attractions, corporate showcases, and international exhibits set under the gleaming Unisphere. The fair blended entertainment with visions of technological and cultural progress, influencing later theme parks and public spaces. Although it struggled financially, its imagery and experiences stayed vivid in the memory of a generation growing up amid the 1960s’ cultural shifts.

SCIENCE & INDUSTRY1972

Apollo 16 Astronauts Make First Moonwalk of the Mission

On April 21, 1972, astronauts John Young and Charles Duke stepped out of the Apollo 16 lunar module onto the Descartes Highlands, beginning their first extravehicular activity on the Moon. They deployed scientific instruments, collected rock and soil samples, and drove the Lunar Roving Vehicle across the rugged terrain. The mission aimed to investigate highland geology and better understand the Moon’s crust. The data and samples they gathered have continued to inform lunar science decades later.

WORLD HISTORY1975

President Nguyễn Văn Thiệu Resigns in South Vietnam

On April 21, 1975, South Vietnamese President Nguyễn Văn Thiệu resigned amid rapidly advancing North Vietnamese forces and growing political pressure. In a televised address from Saigon, he criticized the United States for reducing support as the situation deteriorated. His departure marked a final unraveling of the South Vietnamese government as panic mounted in the capital. Within ten days, North Vietnamese troops captured Saigon, bringing the Vietnam War to an end.

ARTS & CULTURE1986

Television Special “The Mystery of Al Capone’s Vaults” Airs Live

On April 21, 1986, millions of viewers tuned in to watch Geraldo Rivera’s live TV special “The Mystery of Al Capone’s Vaults.” Broadcast from the Lexington Hotel in Chicago, the program built suspense around the opening of sealed vaults once linked to mob boss Al Capone. Excavation crews finally broke through on air, only to find them essentially empty, a moment that quickly turned into a pop‑culture joke. The special nonetheless drew huge ratings and became a case study in media hype and spectacle television.

WORLD HISTORY1989

Mass Student March to Tiananmen Square

On April 21, 1989, tens of thousands of students marched into Beijing’s Tiananmen Square on the eve of the state funeral for former Communist Party leader Hu Yaobang. They called for political reform, action against corruption, and greater freedoms, transforming what began as mourning into a broader protest movement. Demonstrators occupied the square, held sit‑ins, and presented petitions to leaders inside the Great Hall of the People. The gathering helped set the stage for the larger pro‑democracy protests and the tense standoff that unfolded in the weeks that followed.

FAMOUS FIGURES2016

Death of Music Icon Prince

On April 21, 2016, musician Prince Rogers Nelson was found dead at his Paisley Park complex in Chanhassen, Minnesota. A singular performer, songwriter, and producer, Prince fused funk, rock, R&B, and pop in albums like “1999,” “Purple Rain,” and “Sign o’ the Times.” News of his sudden death at age 57 prompted tributes from fellow artists, world leaders, and fans who turned landmarks purple in his honor. His catalog, stagecraft, and fierce independence in the music industry left an enduring mark on popular music.

WORLD HISTORY2019

Coordinated Easter Sunday Bombings in Sri Lanka

On April 21, 2019, coordinated suicide bombings struck churches and luxury hotels in Sri Lanka on Easter Sunday. The attacks, carried out during morning services and breakfast hours, killed and injured hundreds of people, including worshippers, staff, and tourists. Authorities attributed the assaults to local Islamist extremists with claimed links to international militant networks. The bombings prompted nationwide security crackdowns, political upheaval, and renewed debate over intelligence sharing and communal tensions in the island nation.

INVENTIONS1989

Nintendo Releases the Game Boy in Japan

On April 21, 1989, Nintendo launched the Game Boy handheld console in Japan, pairing it with the puzzle game “Tetris.” The grayscale, battery-powered device was deliberately modest in hardware but durable, portable, and backed by strong game design. Players could slip it into a pocket and link devices with cables for multiplayer sessions, transforming commutes and schoolyards into gaming spaces. Game Boy’s success helped cement handheld consoles as a major part of the video game industry.

ARTS & CULTURE1980

Rosie Ruiz Crosses the Boston Marathon Finish Line First—Briefly

On April 21, 1980, runner Rosie Ruiz crossed the finish line of the Boston Marathon and was initially declared the women’s champion with a startlingly fast time. Suspicion quickly grew when other runners and spectators reported not seeing her along much of the course, and her apparent lack of marathoner conditioning raised further questions. Investigators later concluded she had entered the race near the end, and officials stripped her of the title, awarding it instead to Jacqueline Gareau of Canada. The incident became a notorious example of cheating in competitive sports.