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DNA first discovered by Swiss Physician, Friedrich Miescher by discovering a micro substance in pus of discarded surgical bandages; called it Nuclein.
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Discovery followed by Pheobus Levene's identification of base, sugar, and phosphate nucleotide units; suggested DNA consisted of a string of nucleotide units linked together through phosphate groups and a chain of short bases repeated in a fixed order.
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Alfred Hersey and Martha Chase prove DNA has genetic information
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Franklin and Gosling's paper identified distinctions between A/B structures of Double Helix. Also, four years later, Crick laid out "Central Dogma" of molecular biology, fforetold revolution between DNA, RNA, and Proteins.
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Crick and coworkers showed genetic code based on non-overlapping triplets of bases, called codons, allowing Har Gobind Khrana, Robert W., Holley and Marshall Warien Niren berg to decipher genetic code.
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Human Leukocyte Antigens (HLA), genetic markers for Paternity testing
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Sir Alec Jeffreys develops the first DNA profiling test, involving detection of a multilocus RFLP pattern
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DNA used to solve double homicide for first time
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DNA profiling is first introducted to the US criminal court
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The National Reseach Council Committee on Forensic DNA published "DNA Technology in Forensic Science".
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Scientists differentiate between human and nonhuman DNA forensics