We love historical “Firsts” so much that we end up ignoring the people who come right after them. But without these runners-up, the trailblazers are just one-offs or oddities––instead of the beginning of big change. Mo celebrates the Black baseball great who joined the major leagues just eleven weeks after Jackie Robinson, the second American woman in space, and the British invasion band that for a time played second fiddle only to The Beatles. With guests sportscaster Otis Livingston, Michael Oldak and Rhino Records co-founder Harold Bronson.

American NASA astronaut Judith Resnik (1949-1986), wearing a blue NASA jumpsuit, smiling in a studio portrait between a model of a space shuttle and the NASA flag at Johnson Space Center in Houston, Texas, 31st January 1978. On 28th January 1986, Resnik was among the seven crew members killed when the Space Shuttle Challenger broke apart shortly after the launch of mission STS-51-L. (Photo by Space Frontiers/Archive Photos/Hulton Archive/Getty Images)
(Photo by Bettmann Archive/Getty Images)

Dave Clark Five 1965 (Photo by Chris Walter/WireImage)