På denne dag: 15. august
Utforsk avgjørende hendelser, vitenskapelige sprang og historiske vendepunkter. Med kildekritisk merking for antikke og kalenderusatte datoer.
718: Historisk hendelse
Forces of the Umayyad Caliphate abandoned a year-long siege of Constantinople, ending their goal of conquering the Byzantine Empire.
1018: Historisk hendelse
Byzantine general Eustathios Daphnomeles captured and blinded Ibatzes of Bulgaria by means of a ruse, ending the last resistance against Emperor Basil II's conquest of Bulgaria.
1038: Historisk hendelse
Upon the death of his uncle Stephen I, Peter (depicted) became the second king of Hungary.
1261: Historisk hendelse
Michael VIII Palaiologos was crowned Byzantine emperor in Constantinople.
1812: Historisk hendelse
War of 1812: Potawatomi warriors ambushed a United States Army convoy after it had evacuated Fort Dearborn, in present-day Chicago, and razed the fort.
1909: Historisk hendelse
A military coup against the government of Dimitrios Rallis began in the neighbourhood of Goudi in Athens, Greece.
1941: Historisk hendelse
Decree for the mass expulsion of ethnic Germans from Crimea issued by the Soviet government.
1941: Historisk hendelse
Josef Jakobs, a German spy, became the last person executed at the Tower of London.
1942: Historisk hendelse
World War II: The tanker SS Ohio reached Malta as part of an operation to deliver much-needed supplies during the siege of Malta.
1944: Historisk hendelse
World War II: Allied forces began Operation Dragoon, their invasion of southern France.
1947: Historisk hendelse
Jawaharlal Nehru (pictured) took office as the first prime minister of India, a post he held for 16 years.
1948: Historisk hendelse
The Republic of Korea was established with Syngman Rhee as its first president.
1963: Historisk hendelse
President Fulbert Youlou was overthrown in the Republic of Congo, after a three-day uprising in the capital.
1977: Historisk hendelse
Big Ear, a radio telescope at Ohio State University, received a strong, apparently extraterrestrial radio signal that became known as the Wow! signal (printout pictured).
1998: Historisk hendelse
The Troubles: A car bomb attack carried out by the Real Irish Republican Army killed 29 people and injured approximately 220 others in Omagh, Northern Ireland.
2005: Historisk hendelse
The Helsinki Agreement between the Free Aceh Movement and the Government of Indonesia was signed, ending more than 28 years of fighting.
🔍 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.