The square root of a number is the number that, when squared (multiplied by itself), is equal to the given number. For example, the square root of 16, denoted 161/2 or, is 4, because 42 = 4Ã4 = 16. The square root of 121, denoted, is 11, because 112 = 121.
Theatre: France. Dates: 26 May to 4 June 1940. Location: Dunkirk. Outcome: Operation Dynamo, the evacuation of around 350,000 British, French and Belgian troops from Dunkirk, enabled the Allies to continue the war and was a major boost to British morale. Players: Britain: Viscount Gort's British Expeditionary Force (BEF) comprising 13 infantry divisions.
Dunkirk: Where History Happened. We visit 10 places connected with the remarkable evacuation of the British Expeditionary Force from northern France in 1940. This feature was first published in the April 2010 edition of BBC History Magazine. Tuesday 25th May 2010.