The answer to 10-(-12)/4 x 3 = 19
In summary, it would mean that slavery would be abolished, and that the nation would be in fact united, with (supposedly, it actually took a very long time for this to happen considering the KKK attacks) less racism in the U.S.
Christopher Columbus sailed the ocean blue in 1492. He established the world.
In Marbury, the Supreme Courttook the power to declare that laws passed by Congress were null and void if they (in the Court'sopinion) violated the Constitution. The significance of Marbury v.Madison is that the ruling in thatcase gave the Supreme Court of the United States the power of judicial review.
Democrat John F. Kennedy won the 1960 elction against Republican Richard Nixon.
