On April 25 known as DNA Day, is a day that commemorates the successful completion of the Human Genome Project in 2003 and the discovery of DNA’s double helix by James Watson and Francis Crick in 1953, was first celebrated.

The National Human Genome Research Institute (NHGRI) began celebrating DNA Day annually on April 25th after the 108th U.S. Congress passed concurrent resolutions designating it as DNA Day.