<span>The most dramatic change in agriculture in the South was the invention of the cotton gin.
True </span>
Salmon P. Chase was on the the first 1 dollar bill.
Thomas Jefferson was know for his thinking and writing
While the Monroe Doctrine had sought to prevent European intervention, the Roosevelt Corollary was used to justify US intervention throughout the hemisphere. In 1934, President Franklin D. Roosevelt renounced interventionism and established his Good Neighbor policy for the Western Hemisphere.
