Final answer:
The specific actions and events that occurred in Birmingham as a result of it being the most thoroughly segregated city in the South included protests, police violence, and widespread arrests. One significant event was the Birmingham Children's March.
Step-by-step explanation:
The specific actions and events that occurred in Birmingham as a result of it being the most thoroughly segregated city in the South included protests led by the Southern Christian Leadership Conference (SCLC), violence by police, and the imprisonment of Martin Luther King, Jr. These protests brought attention to the inhumanity of segregation and led to widespread arrests and outcry. One significant event was the Birmingham Children's March, where young students were met with police violence, including high-pressure water hoses and police dogs.