På denne dag: 25. august
Utforsk avgjørende hendelser, vitenskapelige sprang og historiske vendepunkter. Med kildekritisk merking for antikke og kalenderusatte datoer.
1258: Historisk hendelse
George Mouzalon, the regent of the Empire of Nicaea, was assassinated as part of a conspiracy led by nobles under the future emperor Michael VIII Palaiologos.
1270: Historisk hendelse
Philip III became King of France following the death of his father Louis IX during the Eighth Crusade.
1537: Historisk hendelse
The Honourable Artillery Company, now the oldest surviving regiment in the British Army, was granted a royal charter by Henry VIII.
1609: Historisk hendelse
Italian astronomer Galileo Galilei (pictured) demonstrated his first telescope to Venetian lawmakers.
1758: Historisk hendelse
Seven Years' War: Prussian forces engaged the Russians at the Battle of Zorndorf in present-day Sarbinowo, Poland.
1835: Historisk hendelse
The New York Sun perpetrated the Great Moon Hoax, publishing articles about the supposed discovery of life on the Moon (lithograph pictured).
1875: Historisk hendelse
Matthew Webb became the first person to swim across the English Channel, doing so in approximately 21 hours 40 minutes.
1914: Historisk hendelse
World War I: During the sack of Louvain in Belgium, German troops burned the town's Catholic university, destroying hundreds of medieval manuscripts.
1942: Historisk hendelse
World War II: Japanese forces attacked the Australian base at Milne Bay during the New Guinea campaign.
1967: Historisk hendelse
Founder of the American Nazi Party George Lincoln Rockwell was assassinated by John Patler, a former member of his group.
1975: Historisk hendelse
Bruce Springsteen released his commercial breakthrough album, Born to Run.
1989: Historisk hendelse
The NASA spacecraft Voyager 2 made its closest approach to Neptune and provided definitive proof of the existence of the planet's rings (pictured).
2001: Historisk hendelse
American singer Aaliyah and several members of her record company were killed when their overloaded aircraft crashed shortly after takeoff from Marsh Harbour Airport in The Bahamas.
2011: Historisk hendelse
Mexican drug war: Fifty-two people were killed in an arson attack at a casino in Monterrey, Mexico.
2012: Historisk hendelse
The NASA space probe Voyager 1 became the first man-made object to enter interstellar space.
2012: Historisk hendelse
The skeleton of King Richard III of England was discovered under a car park in Leicester.
🔍 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.