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On this day

April 20

Marie Curie Isolates Radium: The Element That Glows and Kills (1902). Mariel Boatlift Begins: 125,000 Cubans Head for Florida (1980). Notable births include Adolf Hitler (1889), N. Chandrababu Naidu (1950), Rose of Lima (1586).

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Marie Curie Isolates Radium: The Element That Glows and Kills
1902Event

Marie Curie Isolates Radium: The Element That Glows and Kills

Marie and Pierre Curie isolated a new element from pitchblende that emitted carmine spectral lines never before documented, proving their sample contained something far more radioactive than uranium. They named this substance radium after its ability to emit energy as rays, a discovery that fundamentally expanded the understanding of atomic physics and launched the field of radioactivity research.

Mariel Boatlift Begins: 125,000 Cubans Head for Florida
1980

Mariel Boatlift Begins: 125,000 Cubans Head for Florida

Over a thousand Cuban refugees arrived in Florida aboard makeshift vessels, triggering an immediate federal crisis that forced the U.S. government to establish emergency processing centers and eventually negotiate a new immigration framework. This sudden influx of 125,000 people reshaped American demographics in South Florida and strained Cold War diplomatic relations between Washington and Havana for years.

Hitler's Last Trip to the Surface: Handing Out Iron Crosses to Boy Soldiers
1945

Hitler's Last Trip to the Surface: Handing Out Iron Crosses to Boy Soldiers

A man who'd declared war on the world climbed four flights of stairs just to pin metal on boys too young to shave. April 22, 1945, Berlin: Hitler handed out Iron Crosses to twelve-year-old members of the Hitler Youth while Soviet artillery shattered the bunker above. These kids stood in their uniforms, eyes wide, believing they were heroes when the city was already burning around them. They died that night or later, used as props for a dying leader's final delusion. That day taught us that propaganda doesn't just lie; it steals childhoods before the first bullet even flies.

Robert E. Lee Resigns His US Commission: He'll Fight for Virginia Instead
1861

Robert E. Lee Resigns His US Commission: He'll Fight for Virginia Instead

Lee stood in his quarters, staring at two flags: the stars of the Union and the banner of Virginia. He didn't just resign; he burned his bridges with a single signature on April 20, 1861, handing over his sword to Jefferson Davis. That split tore apart families like his own—his brother-in-law Ulysses S. Grant now stood across the line from him at Appomattox. He chose blood over law, and the war began in earnest. You can't look at a family photo today without wondering who would have drawn a sword for which side.

Cubs Play First Game at Wrigley Field: The Friendly Confines Open
1916

Cubs Play First Game at Wrigley Field: The Friendly Confines Open

They didn't just win; they survived 11 innings of pure exhaustion against the Reds. That first night under electric lights at Weeghman Park saw players collapsing from fatigue, yet a single run decided everything. It wasn't meant to be a legend, just a stopgap for the Chicago Whales before the Cubs bought the lease and renamed it Wrigley Field. Now, a century later, fans still argue about that specific 11th-inning pitch as if they were there. The stadium's real name isn't even what makes it holy; it's the sheer stubbornness of people who refused to leave until the final out.

Quote of the Day

“If you tell a big enough lie and tell it frequently enough, it will be believed.”

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Born on April 20

Portrait of Killer Mike
Killer Mike 1975

Michael Render, known to the world as Killer Mike, emerged from Atlanta’s rap scene to become a fierce voice for social…

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justice and economic reform. Through his work with Run the Jewels and his activism, he bridges the gap between gritty Southern hip-hop and high-level political discourse, challenging systemic inequality with sharp, uncompromising lyricism.

Portrait of Stephen Marley
Stephen Marley 1972

In 1972, a baby named Stephen Marley didn't just cry in Jamaica; he arrived as the seventh child of Bob Marley,…

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destined to carry a specific sonic signature that would define reggae for decades. His early life wasn't filled with fame's glare but with the raw, humid rhythm of Nine Mile Road where his father's music grew like wild vines. He learned to mix tracks on battered equipment before he could legally vote. Today, his production work remains the invisible glue holding modern reggae together, proving that sometimes the most powerful sound is the one you feel in your bones long after the song ends.

Portrait of Felix Baumgartner
Felix Baumgartner 1969

He spent his first winter in Austria's Tyrol, not playing with toys, but staring at snow-capped peaks that seemed to pull at his chest.

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His parents worried he'd never walk down a hill again. By age four, he was already climbing fences just to see the view from the top. That restless need for height followed him until he jumped from the stratosphere in 2012. He left behind a red pressure suit that now hangs empty in Vienna, waiting for someone else to fill it.

Portrait of Mike Portnoy
Mike Portnoy 1967

Mike Portnoy redefined progressive metal drumming by blending technical precision with complex, polyrhythmic compositions.

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As a founding member of Dream Theater, he helped establish the genre’s modern sound, influencing a generation of musicians to prioritize intricate time signatures and virtuosic performance over traditional rock structures.

Portrait of David Filo
David Filo 1966

That year, a baby named David Filo arrived in Michigan, but his family's backyard held no computers—just dirt and silence.

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By age 12, he'd already wired his bedroom to experiment with ham radio signals that vanished into the void. He didn't know he was training for a future where strangers would shout across oceans instantly. Today, you still type questions into boxes he helped build. You just don't see him anymore.

Portrait of Luther Vandross
Luther Vandross 1951

Born in Harlem, he didn't sing until age five, yet he could already mimic every sound his mother made while cooking.

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That tiny boy spent years whispering to empty rooms, practicing breath control so hard his cheeks would ache. He later poured that same intensity into recording sessions where he'd lay down ten vocal tracks just for one harmony line. Today, you can still hear the perfection of "Never Too Much" on a jukebox, proving some things never fade.

Portrait of Alexander Lebed
Alexander Lebed 1950

Alexander Lebed rose to prominence as a paratrooper commander who brokered the 1996 Khasavyurt Accord, ending the First Chechen War.

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His blunt, gravel-voiced pragmatism made him a formidable challenger to Boris Yeltsin, shifting the balance of Russian domestic politics before his sudden death in a helicopter crash six years later.

Portrait of N. Chandrababu Naidu
N. Chandrababu Naidu 1950

He grew up watching his father, a fiery freedom fighter, argue with British officers right in their kitchen.

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That boy didn't just hear politics; he breathed it through the open window while his mother cooked rice. He'd later turn that same kitchen energy into the "Cyberabad" revolution. And yet, the most concrete thing he left behind isn't a statue or a speech, but the actual highway connecting Vijayawada to the airport, paved with his name on every signpost.

Portrait of Massimo D'Alema
Massimo D'Alema 1949

In 1949, a tiny boy named Massimo D'Alema was born in Rome's bustling center, right as Italy's Communist Party was…

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splitting apart over Soviet influence. He grew up hearing debates that almost tore his family in two. Decades later, he became the first socialist to lead Italy, steering the nation through the messy end of the Cold War without a single shot fired. When he left office, he left behind the quiet stability of a united Europe.

Portrait of Thein Sein
Thein Sein 1945

He didn't grow up in a palace; he was born into a chaotic village where his father, a low-level clerk, struggled to…

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feed eight children during a Japanese occupation famine. That hunger shaped a man who later walked away from a military coup to sign peace deals with ethnic rebels, risking his rank for stability. He left behind the 2015 election that finally let Myanmar's voters choose their own leaders, proving even soldiers can lay down guns to vote.

Portrait of Gro Harlem Brundtland
Gro Harlem Brundtland 1939

In 1939, a tiny baby named Gro emerged in Norway's Oslo district, carrying a name that meant "forest grove.

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" Her father, also a doctor, didn't just treat patients; he fought tuberculosis with early antibiotics while the world burned. That quiet childhood amidst rising chaos taught her that health and politics were tangled roots. Decades later, she'd lead Norway as its first female Prime Minister and draft the Brundtland Report defining sustainable development. She left behind a concrete blueprint: the World Commission on Environment and Development's standards still guide how nations balance poverty with planet protection today.

Portrait of K. Alex Müller
K. Alex Müller 1927

K.

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Alex Müller revolutionized condensed matter physics by discovering high-temperature superconductivity in ceramic materials. His 1986 breakthrough with Johannes Georg Bednorz shattered the long-held belief that superconductivity could only occur at near-absolute zero temperatures. This discovery earned them the Nobel Prize and opened the door for practical applications in power transmission and magnetic levitation.

Portrait of Adolf Hitler

Adolf Hitler was rejected twice by the Vienna Academy of Fine Arts.

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The admissions committee said his architectural drawings showed talent but his figure studies were weak. He wanted to be a painter. He spent years as a homeless artist in Vienna, sleeping in shelters and selling postcard watercolors. He served in World War I as a corporal, was wounded and gassed, and was in hospital when Germany surrendered in 1918. He called it a stab in the back. He was a failed artist, a wounded veteran, a man who belonged to no class and no party, who found that hatred gave him a purpose and that he was extraordinary at communicating it. He wrote Mein Kampf in prison. By the time the world understood what the book described, 60 million people were dead.

Portrait of Daniel Chester French
Daniel Chester French 1850

Daniel Chester French defined the American public aesthetic by sculpting the seated Abraham Lincoln for the Lincoln Memorial.

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His mastery of bronze and marble transformed how the nation visualizes its leaders, turning cold stone into a symbol of quiet, contemplative authority that remains the focal point of the National Mall today.

Portrait of Rose of Lima
Rose of Lima 1586

She spent her childhood hiding in a chest, sewing tiny crosses into her skin to stop boys from looking.

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The pain was so sharp she'd scream at night, yet she never told her mother. But this wasn't just suffering; it was the only way she knew how to claim herself. When she died, she left behind a single, dried rose that somehow never crumbled in the humidity of Lima's heat. That flower is still sitting on an altar today, proof that silence can be louder than a scream.

Died on April 20

Portrait of Les McKeown
Les McKeown 2021

He screamed so loud he nearly cracked his own voice box, yet no one heard him cry when the Bay City Rollers' glitter faded into silence.

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Les McKeown, that Scottish heartthrob who sold millions of records while still a teenager, finally stopped singing in 2021. He left behind a vault of unreleased demos and a daughter who now carries his melody forward. And suddenly, you realize the noise wasn't just music; it was the sound of a generation trying to stay young forever.

Portrait of Christopher Robin Milne
Christopher Robin Milne 1996

He spent his final decades guarding the real Christopher Robin from the teddy bears that stole his childhood.

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When he died in 1996, he left behind a quiet shop in Dorset and a stern refusal to let anyone else monetize the boy who was never just a character. And though the world still hugs plush toys, the real man chose books over fame. He taught us that sometimes the only way to keep your story yours is to close the door.

Portrait of Steve Marriott
Steve Marriott 1991

A pile of burnt mattresses smoldered in a small Hertfordshire bedroom, ending Steve Marriott's life at just forty-three.

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The Humble Pie frontman died alone after an accidental fire while trying to light a cigarette. He left behind a voice that could shatter glass and songs that still make crowds roar today. You'll hear him on every classic rock playlist, but the real story is how one careless spark silenced a genius who never stopped playing.

Portrait of Lucy
Lucy 1935

Lucy, Lady Duff-Gordon, didn't just die in 1935; she left behind the ghost of her own creation.

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After surviving the Titanic's freezing waters and the scandal that nearly destroyed her career, she built a house of cards called "Lucile" that draped women in art rather than cloth. She died at her London home, leaving only sketches and a legacy of silk that still whispers through modern runways. The last thing she designed wasn't a dress, but a way for women to finally wear their own confidence.

Portrait of Zhengde Emperor of China
Zhengde Emperor of China 1521

He died chasing a fake battle in 1521, still wearing his painted armor.

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The water was cold, yet he refused to leave the riverbank after falling ill. His body sank into the Yangtze while officials scrambled to hide the truth from courtiers who'd rather play games than rule. He left behind a throne that was empty and a dynasty that spent decades trying to fill the silence he made.

Portrait of Güyük Khan
Güyük Khan 1248

He died mid-campaign, clutching a bowl of fermented mare's milk that turned out to be poisoned by his own mother-in-law.

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Güyük Khan never made it back to Karakorum; instead, he collapsed in the Tien Shan mountains at just forty-two. His sudden passing plunged the empire into a violent succession struggle that lasted three years, pitting his sons against rival generals and freezing expansion cold. He left behind a fractured throne and a warning whispered through generations: even the mightiest ruler can be undone by a single bowl of bad soup.

Holidays & observances

That midnight ride didn't just warn towns; it turned a quiet Tuesday into a sprint for survival.

That midnight ride didn't just warn towns; it turned a quiet Tuesday into a sprint for survival. When British troops marched toward Concord, they found no militia waiting, only silence and empty fields. But minutes later, the "shot heard 'round the world" rang out, shattering that stillness forever. Eighteen local minutemen died in the chaos that followed, their names etched in blood rather than stone. Now, every April we run a race through those same streets to honor the fear and the choice they made. It's not about winning a war; it's about remembering that ordinary people decided to stand still when running away was safer.

A woman named Oda once fed hundreds in a starving village without asking for thanks.

A woman named Oda once fed hundreds in a starving village without asking for thanks. She died in 1158, leaving behind only a reputation for feeding the hungry and praying for the sick. Her family had to sell their last cow to keep the doors open. But her legacy isn't just about bread; it's about how one person's quiet refusal to give up changed who they were. We still tell stories of her because she showed that charity isn't a duty, it's a lifeline.

It started with four students at San Rafael High School in 1971 who couldn't find their teacher to burn a joint befor…

It started with four students at San Rafael High School in 1971 who couldn't find their teacher to burn a joint before class. They'd meet at 4:20 PM, hoping the smoke would clear their heads or just pass the time. That specific hour became an inside joke that exploded into a global ritual for millions. People still gather today not to celebrate a law, but because they never stopped looking for those four friends. Now, every April 20th feels like a massive, noisy reunion where everyone's just trying to remember who started it all.

He wasn't born in 407; he died then, starving in a Roman dungeon while Emperor Honorius debated grain shipments.

He wasn't born in 407; he died then, starving in a Roman dungeon while Emperor Honorius debated grain shipments. Theotimus, a bishop in Gaza, refused to hand over church silver to fund the imperial war machine, even as his flock watched him fade. His silence sparked a riot that forced local magistrates to negotiate peace rather than execution. Today, we remember not a martyr, but a man who chose poverty over power. That choice proves you don't need an army to stop an empire; sometimes, just saying no is enough.

She crushed her own books into dust to prove faith needed no ink.

She crushed her own books into dust to prove faith needed no ink. Agnes of Montepulciano, a 14th-century Dominican nun in Italy, burned her library after years of study so she could focus on prayer and healing the sick. She refused to let education become an excuse for pride. Her sacrifice inspired thousands to prioritize service over scholarship. Now, we remember her not as a scholar who gave up learning, but as someone who realized true wisdom lives in action, not just pages.

Two men sat in a Baghdad garden, watching sunset paint the sky while a decree of exile hung over their heads.

Two men sat in a Baghdad garden, watching sunset paint the sky while a decree of exile hung over their heads. Bahá'u'lláh had just declared his mission to two followers in silence, not with a roar. For twelve days, they turned a prison into a sanctuary, choosing joy over despair. They didn't know it would spark a global movement rooted in unity across all nations. Today, millions still mark that evening by gathering in gardens, turning exile into a celebration of hope.

He packed a suitcase with just two shirts and a German Bible.

He packed a suitcase with just two shirts and a German Bible. Bugenhagen didn't wait for kings; he marched into cities like Hamburg to rewrite their church rules overnight. Families wept as they smashed statues, yet the new order brought schools where poor kids finally learned to read. He died in Wittenberg, but his printed orders stayed on every altar. You probably eat a meal today because he taught you that reading matters more than obedience.

She didn't just feed the hungry; she fed them from her own bedchamber in Brabant, handing out silver cups while her h…

She didn't just feed the hungry; she fed them from her own bedchamber in Brabant, handing out silver cups while her husband watched in stunned silence. Oda gave away every heirloom to buy bread for starving peasants, leaving her household with nothing but a single tunic. Her choices sparked a chain of charity that turned a wealthy noble's home into a sanctuary for the desperate. You'll tell your friends tonight how one woman's reckless generosity proved that true wealth isn't kept in vaults, but spent on strangers.

No, he wasn't born in year zero; that's just how the calendar counts.

No, he wasn't born in year zero; that's just how the calendar counts. Theotimos actually vanished into the desert sands of Egypt, surviving on bitter herbs and silence for decades. He didn't preach from a pulpit; he argued with demons until his voice cracked, forcing the church to decide if holiness meant isolation or community. That choice still ripples through every monastery today. You won't remember his name, but you'll feel the weight of his silence whenever you seek peace in a noisy room.

They starved in the siege, yet kept singing hymns while walls crumbled.

They starved in the siege, yet kept singing hymns while walls crumbled. For six months, the people of Leningrad traded bread for warmth, burying their dead in the frozen earth outside the city gates. Mothers saved crumbs for children who never woke up. The city didn't fall, but it bled forever. That stubborn refusal to surrender became a story families still whisper over tea today.

You'd think a language holiday needed a famous poet, but it actually honors Xu Xiake, a 17th-century traveler who map…

You'd think a language holiday needed a famous poet, but it actually honors Xu Xiake, a 17th-century traveler who mapped China without ever leaving footprints in stone. The UN picked his birthday because he walked where maps didn't exist, risking death for truth. In 2010, member states voted to make this real, turning a single date into a global bridge. Now, when you speak Chinese, you aren't just using words; you're walking the paths of a man who refused to stay put.

Four friends, four numbers, one legendary pot pie.

Four friends, four numbers, one legendary pot pie. In 1971, high schoolers near San Rafael's Walden Woods just wanted to meet at a statue of Louis Pasteur. They never did find the spot, but they codified their search into "420" anyway. That secret code quietly traveled from California classrooms to global kitchens over decades. Now billions share the date, turning a failed hangout into a worldwide ritual. It's not about the plant; it's about how a missed meeting became a shared language for generations who just wanted to be together.

Finland's Evacuee Flag Day honors the 430,000 Finns who were displaced when the Soviet Union annexed Karelia after th…

Finland's Evacuee Flag Day honors the 430,000 Finns who were displaced when the Soviet Union annexed Karelia after the Winter War of 1940 — and displaced again when it was reannexed in 1944. The Karelian evacuees were resettled across Finland in a massive state-organized relocation. They brought their dialects, their food traditions, their music. Finnish linguists documented the Karelian language intensively because it was now spoken only in diaspora. Evacuee Flag Day keeps the memory alive in a country that spent decades officially not talking about what it lost.

Odette († 1158), bienheureuse moniale du Brabant.

Odette († 1158), bienheureuse moniale du Brabant.

Maurice MacKenraghty (en) († 1585), bienheureux prêtre irlandais et martyr à Clonmel.

Maurice MacKenraghty (en) († 1585), bienheureux prêtre irlandais et martyr à Clonmel.

Jacques Bell († 1584), prêtre et Jean Finch, catéchiste, bienheureux martyrs anglais.

Jacques Bell († 1584), prêtre et Jean Finch, catéchiste, bienheureux martyrs anglais.

Hildegonde († 1188), moniale à l'abbaye de Schönau.

Hildegonde († 1188), moniale à l'abbaye de Schönau.

Géraud de Salles († 1120), bienheureux laïc français devenu ermite et fondateur de nombreux monastères.

Géraud de Salles († 1120), bienheureux laïc français devenu ermite et fondateur de nombreux monastères.

Dominique Vernagalli (it) († 1218), bienheureux prêtre camaldule italien.

Dominique Vernagalli (it) († 1218), bienheureux prêtre camaldule italien.

Claire Bosatta († 1887), bienheureuse religieuse italienne et fondatrice des filles de Sainte Marie de la Providence.

Claire Bosatta († 1887), bienheureuse religieuse italienne et fondatrice des filles de Sainte Marie de la Providence.

Antoine Page († 1593), bienheureux prêtre anglais martyr à York.

Antoine Page († 1593), bienheureux prêtre anglais martyr à York.

Anastase Pankiewicz (pl) († 1942), franciscain fondateur des sœurs du Christ-Roi et martyr au château de Hartheim.

Anastase Pankiewicz (pl) († 1942), franciscain fondateur des sœurs du Christ-Roi et martyr au château de Hartheim.

Wihon d'Osnabrück (de) († 804), 1er évêque du diocèse d'Osnabrück.

Wihon d'Osnabrück (de) († 804), 1er évêque du diocèse d'Osnabrück.

Hélène de Laurino († VIe siècle), ermite italienne.

Hélène de Laurino († VIe siècle), ermite italienne.

Grimonie († IVe siècle), martyre.

Grimonie († IVe siècle), martyre.

Chrysophore († 303) et ses compagnons, martyrs à Nicomédie.

Chrysophore († 303) et ses compagnons, martyrs à Nicomédie.

Caedwalla de Galles († 689), roi anglais.

Caedwalla de Galles († 689), roi anglais.

Scientologie : L. Ron Hubbard Exhibition Day / fête de l'exposition L. Ron Hubbard célébrant l'ouverture de la "L.

Scientologie : L. Ron Hubbard Exhibition Day / fête de l'exposition L. Ron Hubbard célébrant l'ouverture de la "L. Ron Hubbard Life Exhibition" à Hollywood en Californie en 1991.

Christian feast day: Agnes of Montepulciano

Christian feast day: Agnes of Montepulciano

Théotime († Ve siècle), évêque de Constanța (alors Tomes en Scythie mineure actuelle Dobroudja).

Théotime († Ve siècle), évêque de Constanța (alors Tomes en Scythie mineure actuelle Dobroudja).

Théodore Trichinas (sr) († 330), moine en Thrace.

Théodore Trichinas (sr) († 330), moine en Thrace.

Ecuador Ecuador: Día de la Virgen de la Dolorosa.

Ecuador Ecuador: Día de la Virgen de la Dolorosa. Se le rinde homenaje a la Virgen de los Dolores, también conocida como Virgen de la Amargura, Virgen de la Piedad o simplemente Madre Dolorosa. Se celebra el prodigio de la Virgen de la Dolorosa, que ocurrió en el Colegio San Gabriel en Quito, el 20 de abril de 1906, donde estudiantes presenciaron que la imagen de la Virgen abría y cerraba los ojos. Esta fecha es una celebración religiosa importante en Ecuador, conmemorando el milagro y la devoción a la Virgen.

San Endón, abad.

San Endón, abad.

San Vihón de frisia (s.

San Vihón de frisia (s. IX).

San Anastasio de Antioquía (s.

San Anastasio de Antioquía (s. VII).

Beato Anastasio Pankiewicz.

Beato Anastasio Pankiewicz.

Beato Antonio Page (s.

Beato Antonio Page (s. XVI).

San Marcelino de Embrún (s.

San Marcelino de Embrún (s. IV).

Beato Domingo Vernagalli (s.

Beato Domingo Vernagalli (s. XIII).

San Crisóforo.

San Crisóforo.

San Teodoro Triquino (s.

San Teodoro Triquino (s. V).

San Secundino de Córdoba (s.

San Secundino de Córdoba (s. IV).

Beata Clara Bosatta (s.

Beata Clara Bosatta (s. XIX).

Santa Heliena de Laurino (s.

Santa Heliena de Laurino (s. VIII).

San Marciano de Auxerre (s.

San Marciano de Auxerre (s. V).

Beato Simón de Todi Rinalducci (s.

Beato Simón de Todi Rinalducci (s. XIV).

Beato Mauricio MacKenraghty (s.

Beato Mauricio MacKenraghty (s. XVI).

México México: Día del Voceador.Celebración de un antiguo oficio con más de 120 años de edad, instaurada por la Unión…

México México: Día del Voceador.Celebración de un antiguo oficio con más de 120 años de edad, instaurada por la Unión de Expendedores y Voceadores de Periódicos en México desde 1955. El objetivo es reconocer el trabajo de hombres y mujeres que brindan sus servicios a los medios impresos del país.

Estados Unidos Estados Unidos: Día de Volar una Cometa (juguete).(en inglés: Go Fly a Kite Day).

Estados Unidos Estados Unidos: Día de Volar una Cometa (juguete).(en inglés: Go Fly a Kite Day).

Estados Unidos Estados Unidos: Día Nacional del Doble.(en inglés: National Look-Alike Day).

Estados Unidos Estados Unidos: Día Nacional del Doble.(en inglés: National Look-Alike Day).

Estados Unidos Estados Unidos: Día de las Papas Fritas con Cheddar.(en inglés: National Cheddar Fries Day).

Estados Unidos Estados Unidos: Día de las Papas Fritas con Cheddar.(en inglés: National Cheddar Fries Day).

Estados Unidos Estados Unidos: Día de Reconocimiento al Voluntariado.(en inglés: Volunteer Recognition Day).

Estados Unidos Estados Unidos: Día de Reconocimiento al Voluntariado.(en inglés: Volunteer Recognition Day).

Costa Rica Costa Rica: Día del Rock.Este día fue declarado oficialmente por el Poder Ejecutivo en 2013.

Costa Rica Costa Rica: Día del Rock.Este día fue declarado oficialmente por el Poder Ejecutivo en 2013. Se conmemora la música rock y se celebra con eventos musicales y actividades relacionadas. Además fue declarado de interés cultural por el Ministerio de Cultura, Juventud y Deportes.

Argentina Argentina: Misiones: Aniversario de Fachinal.Fundación: 20 de abril de 1925 (100 años).

Argentina Argentina: Misiones: Aniversario de Fachinal.Fundación: 20 de abril de 1925 (100 años).

Argentina Argentina: Día del Micólogo.Se celebra el 20 de abril en Argentina y en algunos países limítrofes, en conme…

Argentina Argentina: Día del Micólogo.Se celebra el 20 de abril en Argentina y en algunos países limítrofes, en conmemoración del natalicio del destacado micólogo italo-argentino Dr. Carlos Spegazzini, quien fue un pionero en la descripción de nuevos géneros de hongos, contribuyendo significativamente a la micología.

Día Internacional de José José.Se celebra cada 20 de abril para honrar el legado musical de José Rómulo Sosa Ortiz, c…

Día Internacional de José José.Se celebra cada 20 de abril para honrar el legado musical de José Rómulo Sosa Ortiz, conocido como José José, el "Príncipe de la Canción". Esta fecha fue elegida por los seguidores en 2020, tras su fallecimiento el 28 de septiembre de 2019, en referencia a su icónica canción "Me vas a echar de menos", también conocida como "20 de abril", del álbum Promesas (1985), que incluye el verso "Y me estarás llamando, cada 20 de abril", que inspiró la conmemoración.

Dia do Disco de Vinil

Dia do Disco de Vinil

Dia do Diplomata

Dia do Diplomata

Aniversário do Município de Caraguatatuba (São Paulo)

Aniversário do Município de Caraguatatuba (São Paulo)

Día Mundial de la Poliposis Nasal.

Día Mundial de la Poliposis Nasal.

Sara d'Antioche (it) († 305), épouse et mère de famille, martyre à Antioche.

Sara d'Antioche (it) († 305), épouse et mère de famille, martyre à Antioche.

Marcien († 488), moine à Auxerre.

Marcien († 488), moine à Auxerre.

Marcellin d'Embrun († 354), 1er évêque d'Embrun.

Marcellin d'Embrun († 354), 1er évêque d'Embrun.

Hugues d'Anzy († 928), prieur d'Anzy-le-Duc.

Hugues d'Anzy († 928), prieur d'Anzy-le-Duc.

Hardouin († 811), moine à l'abbaye Saint-Wandrille de Fontenelle.

Hardouin († 811), moine à l'abbaye Saint-Wandrille de Fontenelle.

Gabriel de Bialystok († 1690), enfant martyr.

Gabriel de Bialystok († 1690), enfant martyr.

Catwallon et ses dérivés non moins bretons ou celtes : Catuuallon, Cauallon, etc.

Catwallon et ses dérivés non moins bretons ou celtes : Catuuallon, Cauallon, etc.

Serv et son dérivé moins breton : Servilien.

Serv et son dérivé moins breton : Servilien.

Athanase des Météores († XIVe siècle), moine, ascète, fondateur du monastère de la Transfiguration aux Météores.

Athanase des Météores († XIVe siècle), moine, ascète, fondateur du monastère de la Transfiguration aux Météores.

Alexandre d'Ochevensk († 1479), moine.

Alexandre d'Ochevensk († 1479), moine.

Simon Rinalducci (en) († 1322), bienheureux ermite de saint Augustin italien.

Simon Rinalducci (en) († 1322), bienheureux ermite de saint Augustin italien.

Richard Sergeant († 1586) et Guillaume Thomson, bienheureux prêtres anglais martyrs à Tyburn.

Richard Sergeant († 1586) et Guillaume Thomson, bienheureux prêtres anglais martyrs à Tyburn.