Canadians have reacted with dismay to reports US President Donald Trump questioned whether Canada burned down the White House during a call with the country's leader, Justin Trudeau.
British forces did set fire to the presidential residence during the War of 1812 with the US.
But Canada did not exist at the time - it was made up of British colonies.
"Didn't you guys burn down the White House?" Mr Trump reportedly asked in a call with Mr Trudeau over new tariffs.
It is not clear if the comment was intended as a joke, but CNN report that it followed an exchange in which Mr Trudeau asked how the US could justify the tariffs as a "national security" issue.