På denne dag: 23. september
Utforsk avgjørende hendelser, vitenskapelige sprang og historiske vendepunkter. Med kildekritisk merking for antikke og kalenderusatte datoer.
1122: Historisk hendelse
Pope Callixtus II and Holy Roman emperor Henry V agreed the Concordat of Worms (pictured), ending the Investiture Controversy.
1338: Historisk hendelse
The Battle of Arnemuiden, in which a French force defeats the English, is the first naval battle of the Hundred Years' War.
1642: Historisk hendelse
First English Civil War: The Battle of Powick Bridge, the first engagement between the primary field armies of the Royalists and the Parliamentarians, ended in a Royalist victory.
1780: Historisk hendelse
American Revolutionary War: British officer John André was captured by Patriot forces, thereby revealing a plot by Continental Army general Benedict Arnold to hand over West Point, New York.
1803: Historisk hendelse
Maratha troops were defeated by forces of the British East India Company at the Battle of Assaye, one of the decisive battles of the Second Anglo-Maratha War.
1884: Historisk hendelse
The French steamship Arctique ran aground on the northern coast of Cape Virgenes in Argentina; gold was discovered during the rescue effort, triggering the Tierra del Fuego gold rush.
1913: Historisk hendelse
The United Mine Workers of America begin a strike against the Rockefeller-owned Colorado Fuel & Iron Company, sparking the Colorado Coalfield War.
1920: Historisk hendelse
The Louisiana hurricane dissipated over Kansas after forcing around 4,500 people to evacuate and causing $1.45 million in damages.
1952: Historisk hendelse
U.S. vice-presidential candidate Richard Nixon delivered the Checkers speech, one of the first political uses of television to appeal directly to the populace.
1983: Historisk hendelse
Flying from Pakistan, Gulf Air Flight 771 was bombed up by the Abu Nidal Organization while on approach over the United Arab Emirates (UAE), killing all 112 people on board.
1983: Historisk hendelse
Flying from Pakistan, Gulf Air Flight 771 was bombed up by the Abu Nidal Organization while on approach over the United Arab Emirates (UAE), killing all 112 people on board.
2002: Historisk hendelse
The first version of the web browser Firefox was released by the Mozilla Organization.
2008: Historisk hendelse
A gunman shot and killed ten students at the Seinäjoki University of Applied Sciences in Kauhajoki, Finland, before committing suicide.
2010: Historisk hendelse
Teresa Lewis became the first woman to be executed by the U.S. state of Virginia since 1912, and the first woman in the state to be executed via lethal injection.
2016: Historisk hendelse
Following a number of high-profile sexual assaults, major reforms were enacted to strengthen laws related to rape in Germany.
2019: Historisk hendelse
The British travel company Thomas Cook Group ceased operations with immediate effect, leaving around 600,000 tourists stranded around the world.
🔍 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.