5. Looks like Afterlife penetrated the Tomb in late February, 2001. Velious launched December 5, 2000.
http://web.archive.org/web/200104182...e/sleepers.cfm
http://web.archive.org/web/200103311...lifeguild.org/
I'm not sure which guild made it into the zone first (Fires of Heaven?)
Update: found a post on Alla from Jan 2001 about Sleeper's access:
http://web.archive.org/web/200201241...tml?zstrat=123