they will get married in 1932, and she will join him organizing around the scottsboro case. so that's 1932, and for the next 20 years she will be active. she'll join the naacp in 1943, for the next ten years will help to heed the montgomery naacp to becoming a more activist chapter, doing voter registration, working on legal cases, also trying to get justice for black women who have been victims of sexual violation. so by -- violence. so by december 1, 1955, rosa parks is a seasoned rebel, if you will. >> host: was december 1, 1955, the bus sit-down, was that planned? >> guest: no. it was not planned. but it is a process both in terms of her life, a kind of culmination of, again, many acts of rebellion. certainly, montgomery's black community is thinking about filing a suit. this is a year after brown v. board of education, so we're in a different legal climate. they've been talking about the need to challenge bus segregation. this is also not the first act -- she's not the first person arrested on the bus. in the decade after world war ii, you see a kind of trickle of peopl