Event    From 8/4/1953 

DNA (deoxyribonucleic acid) is a nucleic acid that contains the genetic instructions used in the development and functioning of all known living organisms. Although the discovery of its double helix structure is usually attributed to Francis Crick and James Watson, the experiments conducted by Rosalind Franklin, Raymond Gosling, Alexander Stokes, Maurice Wilkins and Herbert Wilson, were major contributory factors. The discovery was first announced at a Solvay conference in Belgium on 8 April 1953.