Final answer:
The Montgomery Bus Boycott, a crucial civil rights protest against racial segregation, was led by Martin Luther King, Jr., from December 1955 until December 1956.
Step-by-step explanation:
The Montgomery Bus Boycott was a pivotal event in the Civil Rights Movement, initiating a powerful form of nonviolent protest against racial segregation. It began on December 5, 1955, with Rosa Parks' arrest for refusing to give up her seat to a white person and lasted over a year, finally concluding on December 20, 1956, when the Supreme Court ordered the integration of Montgomery's public transportation. This successful boycott was energized by the strong leadership of the president of the Montgomery Improvement Association (MIA), a young Baptist minister who had recently arrived in Montgomery and whose name has become synonymous with the Civil Rights Movement: Martin Luther King, Jr.