History

Time	Change
2013-06-16 14:31:31+00:00	Associated with PS
2017-06-21 13:43:21+00:00	Associated with ps
2017-06-21 13:43:21+00:00	Associated with .ps
2017-06-21 13:43:21+00:00	Associated with postscript
2021-03-23 12:16:36+00:00	Associated with RFC 2160