Since Purgatory is:
- a purification for souls of the
effects, not the guilt,
of sin in their lives, necessary
to experience the full presence
of God in Heaven, and
- since we know of only human beings,
who have spiritual souls, would
need such purification
then it would follow that, Purgatory
has been in existence ever since
man has existed.
How long man has been on earth is
a matter for scientific debate.