Date of a FreeBSD installation

[David Demelier]

Hello folks,

I'm just guessing if there is a way to know a FreeBSD installation date. 
We can't look after the uname -a ident since an update of the FreeBSD 
kernel is possible.

I think searching a file absolutely not touched ever in the system can 
helps but which one?

markand at Melon ~ $ ls -l /root/.cshrc
-rw-r--r--  2 root  wheel  798 19 Jul 04:17 /root/.cshrc

It seems that this file has the FreeBSD dist access time so can't refers 
to neither.

Do you have any clue?

Cheers,

-- 
David Demelier