På denne dag: 20. mars
Utforsk avgjørende hendelser, vitenskapelige sprang og historiske vendepunkter. Med kildekritisk merking for antikke og kalenderusatte datoer.
1602: Historisk hendelse
The Dutch East India Company, the first company to issue stock, was established.
1724: Historisk hendelse
Following the death of Pope Innocent XIII, a papal conclave convened in Rome to elect a new pope.
1760: Historisk hendelse
A fire of unknown cause broke out in Boston, Massachusetts, destroying 349 buildings.
1852: Historisk hendelse
Harriet Beecher Stowe's novel Uncle Tom's Cabin, which had a profound effect on attitudes toward African Americans and slavery in the United States, was published.
1854: Historisk hendelse
The Republican Party was founded in Ripon, Wisconsin, by politicians opposing the Kansas–Nebraska Act and the expansion of slavery in the United States.
1861: Historisk hendelse
An earthquake occurred in the Argentine province of Mendoza, causing at least 6,000 deaths and destroying most of the buildings in the province's capital city.
1890: Historisk hendelse
Emperor Wilhelm II dismissed Otto von Bismarck as the chancellor of the German Empire.
1922: Historisk hendelse
The United States Navy commissioned its first aircraft carrier, USS Langley.
1923: Historisk hendelse
The Arts Club of Chicago hosted the opening of Pablo Picasso's first solo United States showing, entitled Original Drawings by Pablo Picasso.
1926: Historisk hendelse
Chiang Kai-shek initiated a purge of communist elements within the National Revolutionary Army in Guangzhou, China.
1939: Historisk hendelse
Germany issued an ultimatum to Lithuania, demanding the return of the Klaipėda Region under threat of invasion.
1942: Historisk hendelse
World War II: After being forced to flee the Philippines for Australia, US Army general Douglas MacArthur announced: "I came through and I shall return."
1944: Historisk hendelse
World War II: U.S. Marines made a landing on Emirau Island in the Bismarck Archipelago to develop an airbase as part of Operation Cartwheel.
1987: Historisk hendelse
The antiretroviral drug zidovudine became the first treatment approved by the U.S. Food and Drug Administration for HIV/AIDS.
1993: Historisk hendelse
The Troubles: Two children were killed by the second of two bomb attacks by the Provisional Irish Republican Army in Warrington, England.
2010: Historisk hendelse
Eyjafjallajökull (pictured) in Iceland began a series of volcanic events, later disrupting air travel across Europe.
2014: Historisk hendelse
Taliban militants killed nine civilians in a mass shooting at the Kabul Serena Hotel in Afghanistan.
🔍 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.