The Founding of Ajax Plaque was erected by the Ontario Archaeological and Historic Sites Board. It is dedicated to the establishment of a munitions plant during the Second World War and Ajax being a temporary campus of the University of Toronto for thousands of Veterans returning from the Second World War.
The town name is from the British cruiser HMS Ajax, which was a key player during the Battle of the River Plate, the first Allied Naval victory in the war. In December 1939, a flotilla of British warships, including HMS Ajax, HMS Exeter and HMS Achilles, commanded by Commodore Harry Harwood, engaged and crippled the German battleship Admiral Graf Spee near the Uruguayan port of Montevideo. The German ship fled to into the port, but rather than face the overwhelming British force, the Captain scuttled his ship. The Town of Ajax takes its name from this famous battle.