1.1951-World was in midst of biggest polio epidemic in history
2. 1952-Jonas Stalk announces that he developed the world's first polio vaccine but couldn't offer it to children right away
3.1952-On April, Gey and William Scherer tried infecting Henrietta's cells with polio virus
4.1952-Gey gathered handful of tubes containing HeLa cells and sent it to Mary to give to William
5.1953-A geneticist in Texas mixed a wrong liquid with HeLa cells and the chromosomes swelled up and spread out which allowed a clearer visual
6. 1953-On November 2, the Minneapolis Star was the first to name the woman behind HeLa cells
7.1954-May 14: Collier;'s published a story about the power and promise of tissue culture
8.1953-During Henrietta's funeral, one of the relatives brought tuberculosis and Sonny, Deborah, and baby Joe tested positive for TB.
9.1956-Cliff is visited by the author and shows the author where Henrietta use to live
10.1956-The author sees the tombstone of Henrietta and sees the memorial of her
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