Louisiana was purchased from France in 1803. Evidently this purchase would increase the size of America. This now doubled the size of the country. This purchase then assisted in securing the port of New Orleans and the ability to use the Mississippi river.
What they have in common is that both actions require consent of the senate. The senate has to vote with a majority for those things to come into effect. <span />
<span>Thurgood Marshall was able to advance the goals of the Civil Rights movement directly because of his position in the Supreme Court. He is the nation's first black justice. He even argued thirty two cases before the US supreme court. </span>