jann crawford shows us how bringing all this together took 100 years. >> gives me goosebumps to see it happening. >> reporter: it has been a long road, and the story of this museum, like the african-american experience, is one of trial and triumph. >> see it finally happen after all this time is just really overwhelming. >> reporter: it was a century in the making, a dream for generations. it became reality through tireless work by people like judge robert wilkins who helped build coalitions so the full black civil war veterans, their contributions to winning their freedom ignored, pushed for a memorial to honor their service, funding never came. >> this has been one of the great days of america. >> reporter: decades later, civil rights movement swept the country. reigniting the effort to recognize african-american history, but the roadblock seemed almost insurmountable. civil rights icon, john lewis, introduced 13 different bills to create a museum, opposition came from multifronts. >> once we approve this museum, we will be called upon by other minority groups and they will be justif