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This Day in History

May 20

May 20 · Wikipedia

Vasco da Gama found India and Lindbergh pointed toward Paris.

This day, across time

3000 BCE500 CE10001500180019002000325 CE · Event · First Council of Nicaea Opens794 CE · Died · Æthelberht II of East Anglia1444 · Died · Bernardino of Siena1498 · Event · Vasco da Gama Arrives in India1506 · Died · Christopher Columbus1570 · Event · First Modern Atlas Published1609 · Event · Shakespeare's Sonnets Published1799 · Born · Honoré de Balzac1806 · Born · John Stuart Mill1862 · Event · Lincoln Signs the Homestead Act1873 · Event · Levi Strauss and Jacob Davis Patent Blue Jeans1875 · Event · Metre Convention Signed, Establishing Metric System1882 · Born · Sigrid Undset1883 · Event · Krakatoa Begins Erupting1927 · Featured · Charles Lindbergh Departs on First Solo Transatlantic Flight1940 · Event · First Prisoners Arrive at Auschwitz1946 · Born · Cher1964 · Event · Cosmic Microwave Background Radiation Discovered
  1. 325 CEEventFirst Council of Nicaea Opens
  2. 794 CEDiedÆthelberht II of East Anglia
  3. 1444DiedBernardino of Siena
  4. 1498EventVasco da Gama Arrives in India
  5. 1506DiedChristopher Columbus
  6. 1570EventFirst Modern Atlas Published
  7. 1609EventShakespeare's Sonnets Published
  8. 1799BornHonoré de Balzac
  9. 1806BornJohn Stuart Mill
  10. 1862EventLincoln Signs the Homestead Act
  11. 1873EventLevi Strauss and Jacob Davis Patent Blue Jeans
  12. 1875EventMetre Convention Signed, Establishing Metric System
  13. 1882BornSigrid Undset
  14. 1883EventKrakatoa Begins Erupting
  15. 1927FeaturedCharles Lindbergh Departs on First Solo Transatlantic Flight
  16. 1940EventFirst Prisoners Arrive at Auschwitz
  17. 1946BornCher
  18. 1964EventCosmic Microwave Background Radiation Discovered

Alive in 1927

OverlapSame years; not influence

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On This Day in History

10 Events
325

First Council of Nicaea Opens

The First Council of Nicaea was formally opened in present-day Turkey under the patronage of Emperor Constantine, marking the first ecumenical council of the Christian Church and producing the Nicene Creed.

1498

Vasco da Gama Arrives in India

Portuguese explorer Vasco da Gama arrived at Kozhikode (Calicut) on the Malabar Coast of India, completing the first direct sea route from Europe to Asia around the Cape of Good Hope and opening a new era of global trade.

1570

First Modern Atlas Published

Flemish cartographer Abraham Ortelius published Theatrum Orbis Terrarum (Theatre of the World) in Antwerp — widely considered the first true modern atlas, containing 53 maps based on the best geographical knowledge of the age.

1609

Shakespeare's Sonnets Published

Shakespeare's sequence of 154 sonnets was first published in London, possibly without his authorisation, by printer Thomas Thorpe — offering the world some of the greatest lyric poetry in the English language.

1862

Lincoln Signs the Homestead Act

President Abraham Lincoln signed the Homestead Act, offering 160 acres of public land to any settler who improved and farmed it for five years, opening 84 million acres to westward expansion.

1873

Levi Strauss and Jacob Davis Patent Blue Jeans

Levi Strauss and tailor Jacob Davis received a U.S. patent for blue jeans reinforced with copper rivets, creating what became the world's most iconic garment.

1875

Metre Convention Signed, Establishing Metric System

Representatives of 17 nations signed the Metre Convention in Paris, establishing the International Bureau of Weights and Measures and creating the infrastructure for the global metric system.

1883

Krakatoa Begins Erupting

The volcanic island of Krakatoa in the Dutch East Indies began a series of eruptions that culminated in the catastrophic explosion of August 27, 1883 — one of the deadliest volcanic events in recorded history, killing more than 36,000 people.

1940

First Prisoners Arrive at Auschwitz

The first prisoners — 728 Polish political prisoners transferred from Tarnów — arrived at the newly established Nazi concentration camp at Auschwitz, beginning what would become the largest killing centre of the Holocaust.

1964

Cosmic Microwave Background Radiation Discovered

Robert Woodrow Wilson and Arno Penzias at Bell Labs discovered the cosmic microwave background radiation — a faint echo of the Big Bang — providing the strongest evidence yet for the Big Bang theory of the universe's origin. They won the Nobel Prize in Physics in 1978.

Born on This Day

1799

Honoré de Balzac

French novelist

Honoré de Balzac was one of the founders of literary realism, whose vast linked series of novels La Comédie Humaine depicted French society with unparalleled scope and psychological depth. Works including Père Goriot and Lost Illusions influenced Dickens, Proust, Zola, and Marx, who praised his insight into social forces.

1806

John Stuart Mill

English philosopher and economist

John Stuart Mill was the most influential liberal thinker of the 19th century. His works On Liberty, Utilitarianism, and The Subjection of Women remain foundational texts of political philosophy. He was also one of the first Members of Parliament to call for women's suffrage.

1882

Sigrid Undset

Norwegian novelist, Nobel Prize laureate

Sigrid Undset won the Nobel Prize in Literature in 1928, primarily for her monumental medieval trilogy Kristin Lavransdatter, set in 14th-century Norway. Her historical novels combined deep psychological realism with a profound moral vision. During World War II she fled to the United States after the Nazi occupation of Norway.

1946

Cher

American singer and actress

Cher is one of the best-selling music artists of all time, with a career spanning over six decades. Known for hits like "Believe" and "If I Could Turn Back Time," she is one of the few entertainers to have achieved number-one hits in each decade from the 1960s to the 2000s. She also won an Academy Award for Best Actress for Moonstruck (1987).

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Notable Deaths

1506

Christopher Columbus

Italian explorer, European discoverer of the Americas

Christopher Columbus died in Valladolid, Spain, still believing he had reached Asia rather than a previously unknown continent. His four voyages across the Atlantic beginning in 1492 opened the Americas to European colonisation, with consequences — transformative and catastrophic — that shaped the modern world.

794

Æthelberht II of East Anglia

King of East Anglia

King Æthelberht II was executed on the orders of the Mercian king Offa while visiting his court, possibly in a dispute over territory or marriage. He was later venerated as a saint and martyr, with Hereford Cathedral dedicated to him.

1444

Bernardino of Siena

Italian Franciscan preacher and saint

Bernardino of Siena was one of the most influential preachers of 15th-century Italy, known for his fiery sermons on morality and his promotion of the IHS (Jesus) monogram as a symbol of Christian devotion. He was canonised just six years after his death.

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