DNA Day is a holiday celebrated on April 25. It commemorates the day in 1953 when James Watson, Francis Crick, Maurice Wilkins, Rosalind Franklin and colleagues published papers in the journal Nature on the structure of DNA. Wikipedia
I wonder if they realised what they started in the way of genetic genealogy?
FamilyTree DNA are havine a short sale to celebrate both this and the launch of their updated Y_SNP tree.
A good time to be in if you've been thinking about testing, and/or refining your position on the haplogroup tree of mankind.