Final answer:
Martin Luther King, Jr. traveled to Memphis, Tennessee in 1968 to support a sanitation workers' strike, which represented a crucial moment in the fight for civil and labor rights.
Step-by-step explanation:
In 1968, Martin Luther King, Jr. was assassinated in Memphis, Tennessee, where he had traveled to assist in organizing a sanitation workers' strike. Dr. King was in Memphis to support sanitation workers who were trying to unionize, battling against poor working conditions and seeking recognition for their humanity. This strike was symbolic of the larger Civil Rights Movement, emphasizing the intersection of racial justice and economic equality. The workers' protest signs reading "I AM A MAN" captured the essence of their struggle, which Dr. King recognized as part of the broader fight for justice in the United States. His last speech, given in support of these workers, highlighted that the movement was larger than a single issue; it was about dignity and rights for all.
King's involvement in the Memphis sanitation workers' strike illustrates the interconnectedness of racial inequality and labor rights. His presence there underscored the significance of the movement for workers' rights as an integral part of the Civil Rights Movement. The tragic event of his assassination brought national attention to the plight of the workers and highlighted the ongoing struggles for racial and economic justice in America.