上 54 40 parallel 273815-54 40 parallel
Geographically, the 54 40 line refers to the northern borderline of Oregon, which then formed the northernmost limit of the territory the US sought to acquire from BritainHis slogan was "5440 or fight!5440 was the latitude line marking the northern reach of the proposed Oregon territory, a line that was in dispute with the British government at the time 54 40 Or Fight Slogan History Significance Us History Class Video Study Com 54 40 parallel
