The relationship between magnetism and electric current was discovered by
A. Hans Christian Oersted
Answer:
<h3>The North Koreans justified their attack on the South by the desire of the Korean people to be independent and unified...</h3>
In Plessy v. Ferguson, the Supreme Court ruled that facilities that were "separate but equal" were permissible under the US Constitution.
This allowed the Jim Crow laws to develop wherein African Americans went to different schools, ate at different restaurants or in different sections, and were generally segregated from the population
I think it happened because president Hayes had a bad reputation at that time and the idea was, the congress should be stronger to "look at his hands".