For my periodization, I created two periods, aetas38012 and aetas38013.
Time sets aetas38012 and aetas38013 are chronologically very close, but with these small differences (which, nonetheless, I found important):
aetas38012 Roman Early Empire-Late Antique (BC 30-AD 640) lasts longer, but is covers less territories
aetas38013 Roman Early Empire (BC 30-AD 300) is chronologically shorter, but extends over more space
The distinction was useful for periodization of places linked with the apostles: so they are 38013. Places of several later saints, like St. Ambrose, are put into time category 38012.
For my periodization, I created two periods, aetas38012 and aetas38013.
Time sets aetas38012 and aetas38013 are chronologically very close, but with these small differences (which, nonetheless, I found important): aetas38012 Roman Early Empire-Late Antique (BC 30-AD 640) lasts longer, but is covers less territories aetas38013 Roman Early Empire (BC 30-AD 300) is chronologically shorter, but extends over more space
The distinction was useful for periodization of places linked with the apostles: so they are 38013. Places of several later saints, like St. Ambrose, are put into time category 38012.