What significant action did Dr. Martin Luther King Jr. lead in response to Rosa Parks' arrest in 1955?

Dr. Martin Luther King Jr. led a significant action following Rosa Parks' arrest by organizing a 381-day boycott of city buses in Montgomery, Alabama. This action was pivotal in the civil rights movement, as it was a direct response to the systemic racism and segregation that Parks stood against by refusing to give up her bus seat to a white passenger. The boycott aimed to protest the unjust practice of racial segregation on public transportation and sought to advance the cause of civil rights for African Americans.

The boycott not only highlighted the economic power of the African American community but also showcased the effectiveness of nonviolent protest. During this period, King emerged as a prominent leader and spokesperson for civil rights, advocating for equality through peaceful means. The successful completion of the boycott ultimately led to a Supreme Court ruling that declared the segregation laws of Montgomery unconstitutional, marking a significant victory for the civil rights movement.