[quote=@Lord Wraith]
<Snipped quote by Wade Wilson>

So I'm struggling with this CS a bit. Mainly because if he's over 800 years old, what can Sam learn from the school?
[/quote]

A lot, actually. Because Dominus Temporis is a suspended fragment in time, their years are pretty short in realtime, even though it feels like forever for them. Imagine dog years, and the such.