SYMBOLS AND ABBREVIATIONS
(used in this site)
 =  leads to, gives rise to, is related to
  =  leads to, gives rise to, is related to
{1}, {2}, etc. = additional links (beyond an initial entry)
{1x}, {2x}, etc. = additional external links 
Abbreviations (seen especially in the Subject and People Indexes:
 ca. =  about
 cf.  =  see corresponding date on chart
 d.   =  died
 fl.   =  flourished (this individual was prominent at the indicated date)