A: Cambridge, England, United Kingdom
In July 1946 The Society for Experimental Biology held its first symposium on the topic of Nucleic Acids at Cambridge. At this meeting William Astbury "pointed out "the relationship between the step size of nucleic acid—3.3 angstrom units—and the step size of amino acids—3.5 angstrom units. Astbury discussed the notion of the amino acids being determined by the nucleic acid" (Sydney Brenner, My Life in Science, 30).
Astbury, "X-ray Studies of Nucleic Acids," Symposium Society Experimental Biology 1 (1947) 67-76.