The draft human genome sequences were published in 2001, with the public consortium’s analysis appearing in Nature and the private Celera effort reported in Science.
The Human Genome Project began in 1990 as an international effort to map and sequence human DNA. By 2000, researchers had produced a working draft, and the achievement was announced at a White House ceremony involving U.S. President Bill Clinton and British Prime Minister Tony Blair. The draft publications followed in February 2001.
The public consortium paper in Nature described an international collaboration and made its sequence data freely available. Celera Genomics published its independent whole-genome shotgun assembly in Science. These were draft sequences: they contained gaps, redundancies, and regions requiring further refinement.
The year 2003 marks the project’s completion milestone, not the publication of the draft papers. Later work improved accuracy and filled missing regions, but 2001 is the canonical answer for the landmark draft publications.