Ask the Chatbot Games & Quizzes History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture ProCon Money Videos
Henry Duncan Graham Crerar
Introduction References & Edit History Quick Facts & Related Topics
Images
(Left) Henry Crerar, commander of the First Canadian Army, and (right) Dwight D. Eisenhower, supreme commander of the Allied Expeditionary Force, World War II.
At a Glance
Germany invades Poland, September 1, 1939, using 45 German divisions and aerial attack. By September 20, only Warsaw held out, but final surrender came on September 29.
Pop Quiz: 17 Things to Know About World War II
Quizzes
U.S. marines raising the American flag over Mount Suribachi, Iwo Jima, in February 1945
World War II Quiz

Henry Duncan Graham Crerar: References & Edit History

Article Contributors

Primary Contributors

  • The Editors of Encyclopaedia Britannica
    Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.

Other Encyclopedia Britannica Contributors

Article History

Type Description Contributor Date
Anniversary information added. Apr 24, 2026
Anniversary information added. Mar 28, 2026
First paragraph modernization. Apr 25, 2024
Invalidated site: The Canadian Encyclopedia - Biography of Henry Duncan Graham Crerar. Dec 18, 2017
Add new Web site: Governement of Canada - Royal Military College of Canada - Biography of Henry Duncan Graham Crerar. Apr 20, 2017
Changed "The Netherlands" to "the Netherlands." Jun 22, 2010
New article added. Mar 25, 2005
View Changes:
Article History
Revised:
By: