For instance, if Scorpio relates to lifetimes during the Middle Ages, what are the correlations of the other archetypes?
To understand this question is to understand the nature of the Ages and their sub-ages. And then within the sub-ages to understand the time frames that take place within them that directly correlates with specific signs/ times. When the S.Node is in Scorpio this does not mean, in and of itself, a correlation to the middle ages. The middles ages correlate to the Pisces Age and the Virgo sub-age to start with. Please click on this link: http://schoolofevolutionaryastrology.com/forum/index.php?topic=416.0
for a complete understanding.
If you have any questions after reading all of it let me know.
God Bless, Rad