31 dic 1953 año - In 1953, JD Watson and FHC Crick cleared mysteries around DNA
Descripción:
 "In 1953, JD Watson and FHC Crick for the first time cleared the mysteries around the DNA as a genetic material, by giving a structural model of DNA, popularly known as, ‘Double Helix Model of DNA’." (from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3178936/) 
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fecha:
31 dic 1953 año
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 ~ 71 years ago