PHP, 4040 35 33 bytes
$d=datewhile(Y$i<121);whileecho date($i<121Y)echo$d-$i++." ";_;
I'm just going to pretend that error reporting is always disabled for code golfing... :)
[Edit 1: Saved 5 bytes via manatwork]
[Edit 2: Saved 2 bytes via Titus]