Final answer:
On September 25th, 1957, the Little Rock Crisis took place, which led to the desegregation of Central High School in Little Rock, Arkansas.
Step-by-step explanation:
On September 25th, 1957, a significant event occurred in the United States known as the Little Rock Crisis. This event marked the desegregation of Central High School in Little Rock, Arkansas. Nine African American students, known as the Little Rock Nine, were escorted by US soldiers from the 101st Airborne Division into the previously all-white high school, following a Supreme Court ruling that declared segregation in public schools unconstitutional.