Historical eventSeptember 151944

World War II

World War II: American and Australian forces landed on the Japanese-occupied island of Morotai.

Everything on September 15Original source

In context

When
Friday, September 15 194482 years ago
Category
Historical eventA dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
Era
20th century · 1940s
Recorded from
Wikipedia “On this day” feed

At a glance

Dates: From 1944.

What happened

World War II, or the Second World War, was a global conflict between two coalitions: the Allies and the Axis powers. Nearly all of the world's countries participated, with many engaging in total war on an unprecedented scale. World War II was the deadliest conflict in history, causing the deaths of 60 to 75 million people, a majority of whom were civilians. Millions died as a result of massacres, starvation, disease, and genocides including the Holocaust. After the Allied victory, Germany, Austria, Japan,

September 15 through the years

Other entries on the same calendar day, in order.

  1. 1944World War II
  2. 1995Malaysia Airlines Flight 2133
  3. 2001Championship Auto Racing Teams
  4. 2004National Hockey League
  5. 2008Lehman Brothers
  6. 20082008 financial crisis
  7. 2011Gleision Colliery mining accident
  8. 2013Ivan Kulesh
  9. 2017Parsons Green train bombing
  10. 2020Bahrain–Israel normalization agreement
  11. 2020Abraham Accords

Also in 1944

  • October 20World War IIWorld War II: Fulfilling a promise he made two years previously, General Douglas MacArthur landed on Leyte to begin the recapture of the…
  • May 25WehrmachtThe Wehrmacht and their collaborationist allies launched Operation Rösselsprung, a failed attempt to assassinate the Yugoslav Partisan le…
  • June 14World War IISecond World War: The British Army abandoned its attempt to capture the German-occupied city of Caen.
  • November 27RAF Fauld explosionBetween 3,500 and 4,000 tonnes of ordnance exploded at the RAF Fauld underground munitions storage depot in the largest non-nuclear explo…
  • September 3DiaryHolocaust: Diarist Anne Frank and her family are placed on the last transport train from the Westerbork transit camp to the Auschwitz con…
  • July 5World War IISecond World War: Canadian troops defeated the last German counterattacks against Carpiquet, Normandy, France.
  • November 5World War IIWorld War II: Allied forces began a military campaign on Japanese-occupied Singapore.
  • June 17IcelandIceland declares independence from Denmark and becomes a republic.

Everything we record for 1944 →

Sources

Cite this page

“World War II”, What's On This Date, https://whatsonthisdate.com/app/event/world-war-ii-1944-september-15, accessed October 28, 2026.

Cite the underlying source as well — the source links above go to the record this entry is adapted from.

Questions about this entry

When did World War II happen?

September 15 1944 — 82 years ago, on a Friday.

Where does this text come from?

Wikipedia “On this day” feed. Summaries are short adaptations that link back to the source, not reprints.

How do I cite this page?

Use the ready-made citation near the sources at the bottom of the page, and follow the source link to cite the underlying record as well.

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