that's how it happened (According to sales figures from stick...)

Quote
"According to sales figures from stick manufacturers, a majority of Canadian hockey players shoot left-handed, and a majority of American players shoot right-handed. No reason is known for this disparity."

The article doesn’t actually expand on this curiosity, but it has to relate to some kind of advantage on the ice of passing between players who share the same ~~hand~~stickedness. Hockey Stick Divide - Canada Leans Left, U.S. Right - NYTimes.com