What is Oregon territory famous quote?

The phrase "Fifty-four Forty or Fight!" was a political slogan that originated in the United States during the 1840s. It was used to express the belief that the United States had a right to all of the Oregon Territory, which was then jointly occupied by the United States and the United Kingdom. The phrase is often attributed to Senator Lewis F. Linn of Missouri, who used it in a speech in the United States Senate in 1843.