The Fifty-Fourth Parallel is a line of latitude located at 54 degrees north of the equator. It runs across various regions, including parts of Canada and Alaska. This parallel is significant in geography and is often referenced in discussions about territorial boundaries and climate. Historically, the Fifty-Fourth Parallel was a point of contention in the 19th century during the Oregon boundary dispute between the United States and Great Britain. The slogan "Fifty-Four Forty or Fight!" was used by American expansionists advocating for U.S. claims to the territory, which included present-day Oregon, Washington, and parts of British Columbia.