Final answer:
The sentences provided do not contain adverbs; hence, we cannot assess the correctness of adverb usage. They are factual statements about Martin Luther King Jr.'s life and contributions to the Civil Rights Movement.
Step-by-step explanation:
The student has asked for a determination of whether the adverbs in the provided sentences were used correctly. However, there are no explicit adverbs used in these sentences to evaluate. The sentences are factual statements regarding significant events in the life of Martin Luther King Jr., and they do not contain adverbs that modify verbs, adjectives, or other adverbs which could be judged as correct or incorrect in use. Therefore, we cannot provide a checkmark or an X based on the adverb usage.
Martin Luther King Jr. played a pivotal role in the Civil Rights Movement and made significant contributions in his pursuit of equality and justice for African Americans. Segregation, voting discrimination, and racial injustice were central themes in his campaigns, particularly exemplified by the Selma to Montgomery marches and his leadership in various non-violent protests. The powerful legacy of Dr. King is also marked by tragic events, such as his assassination in Memphis, Tennessee, which sparked further civil unrest and highlighted the intense racial tensions of the era.