På denne dag: 20. juni
Utforsk avgjørende hendelser, vitenskapelige sprang og historiske vendepunkter. Med kildekritisk merking for antikke og kalenderusatte datoer.
1782: Historisk hendelse
The Congress of the Confederation adopted the Great Seal of the United States (obverse pictured), used to authenticate documents issued by the U.S. federal government.
1837: Historisk hendelse
Queen Victoria (pictured) acceded to the British throne, beginning a 63-year reign.
1900: Historisk hendelse
Boxer Rebellion: The Imperial Chinese Army began a 55-day siege of the Legation Quarter in Peking.
1921: Historisk hendelse
Workers at the Buckingham and Carnatic Mills in Madras, India, began a four-month strike.
1921: Historisk hendelse
British Army officer Thomas Stanton Lambert was assassinated by the Irish Republican Army near Moydrum, Ireland.
1926: Historisk hendelse
Approximately 250,000 spectators attended the opening procession of the 28th International Eucharistic Congress in Chicago, United States.
1943: Historisk hendelse
World War II: The Royal Air Force began Operation Bellicose, a four-day shuttle-bombing mission that included raids on Germany and Italy and a refuelling and rearming stop in Algeria.
1947: Historisk hendelse
A Mafia hitman murdered gangster Bugsy Siegel, one of the driving forces in the development of the Las Vegas Strip, in Beverly Hills, California.
1959: Historisk hendelse
The extratropical remnants of an Atlantic hurricane reached the Gulf of St. Lawrence in Canada, causing 22 fishing boats to capsize and killing 35 people.
1960: Historisk hendelse
The Mali Federation gained independence from France, but dissolved into Mali and Senegal two months later.
1975: Historisk hendelse
Steven Spielberg's film Jaws was released; it became a summer blockbuster and the first film to earn $100 million in U.S. theatrical rentals.
1979: Historisk hendelse
Bill Stewart, an American journalist, was executed by Nicaraguan Guardia forces.
1982: Historisk hendelse
The International Conference on the Holocaust and Genocide, the first major conference in genocide studies, opened despite Turkish attempts to cancel it due to the inclusion of presentations on the Armenian genocide.
1994: Historisk hendelse
A bomb explosion in the Imam Reza shrine in Mashhad, Iran, left at least 25 dead and more than 70 injured.
2009: Historisk hendelse
Iranian student Neda Agha-Soltan was shot dead in Tehran during the presidential election protests; footage of her death was widely distributed over the Internet, making it "probably the most widely witnessed death in human history".
2019: Historisk hendelse
Iranian aircraft shot down an American drone over the Strait of Hormuz amid heightened tensions between the two countries.
🔍 Om kildene og historisk datering
Å tidfeste hendelser tusenvis av år tilbake i tid er en krevende historievitenskapelig oppgave. Før innføringen av den julianske kalenderen (45 f.Kr.) og den gregorianske kalenderen (1582) benyttet ulike sivilisasjoner (romere, grekere, kinesere, babylonere) vidt forskjellige kalendersystemer basert på månesykluser eller lokale embetsperioder.
Slik merker vi dateringene:
• ✓ Sikker datering: Dokumentert i samtidige protokoller, offisielle traktater eller etter standardiserte kalendersystemer.
• ⚠️ Usikker / estimert: Hendelsen er historisk reell, men datoen er tradisjonell, basert på senere krøniker eller lunisolare omregninger.
- Wikimedia Foundation – Wikipedia On This Day arkiver og historiske registre.
- Store norske leksikon (SNL) – Norsk og internasjonal historie, biografier og årstallsverifisering.
- Encyclopædia Britannica – Verifisering av antikke slag, fredsavtaler og statsdannelser.
- NASA Historical Logs & Science Missions – Romfartshistoriske datoer og oppskytningstelemetri.