Which Canadian city was previously home to the Thrashers NHL team?

The correct answer is Atlanta, as the Thrashers NHL team was originally established in Atlanta, Georgia. This team joined the NHL in 1999 and was active until 2011, when it relocated to Winnipeg, becoming the Winnipeg Jets. While the question refers to a Canadian context, it is essential to recognize that the Thrashers were not a Canadian team; their history is significant in relation to the NHL's expansion and relocation patterns. The answer identifies the original city of the Thrashers prior to their move, which is the key point of focus.

The other cities listed, such as Montreal, Toronto, and Calgary, are notable Canadian cities with rich hockey traditions but have no historical ties to the Thrashers franchise.