Answer:
Nine African American pupils arrived to Little Rock, Arkansas, Central High School and were ready to attend class on the 4th September 1957. But they were told to leave by the Arkansas National Guard.
The Nine Rocher's was a group of students of the National Guard in Little Rock, Arkansas, seized by the American African American Guard on 4 September 1957. This episode is largely considered a turning point in the history of American civil rights.
Separate education systems have been maintained in the United States for many years for Afro-Americans and Whites. In Brown v. Board of Education, the Supreme Court unanimously ruled that public-school segregation was unconstitutional under the US Constitution.
The first banned the nine black students from entering the building was the Governor of Arkansas Orval Faubus, but then changed his decision. Afterwards, crowds of people threatened to lynch them. President Eisenhower deployed the 101st Army Division to Arkansas, placing under federal jurisdiction the Military Arkansas Guard.