
Extract the answer to the question from the following context.
Question: 365 days, or sometimes 366 days make up what used to describe the passage of time for the Earth to revolve around the sun?
Context: Information had been kept on digital tape for five years, with Kahle occasionally allowing researchers and scientists to tap into the clunky database. When the archive reached its fifth anniversary, it was unveiled and opened to the public in a ceremony at the University of California, Berkeley.

years
