From this site it seems to be at least 15 years old: https://web.archive.org/web/20000701000000*/http://www.opensource.apple.com/ https://web.archive.org/web/20

From this site it seems to be at least 15 years old: https://web.archive.org/web/20000701000000*/http://www.opensource.apple.com/ https://web.archive.org/web/20000701000000*/http://www.opens...