New Roman calendar: Galba

Hello,

Please add the following calendar for Roman provincial coins:

Rome - Galba 

Year 1 corresponds to 8 June - August AD 68

Year 2 corresponds to August AD 68 - 15 January 69

for this coin:

N#376148

Thank you

Hello Brünhild,

I added the calendar “Rome - Galba era”. It's not possible to specify exact days or to specify two years, so both years 1 and 2 will show as AD 68.

Thank you!

I made a suggestion here to clarify situations like these:

https://en.numista.com/forum/topic136520.html

I am also not sure that the way this appears in the Features panel is accurate:

Calendar    Rome - Galba era

This was a regnal era based on the Julian calendar. So maybe better would be:

Calendar    Julian (Galba era)

What do you think?

I agree the label “Rome - Galba era” might be useful for selection on the edit page, but it doesn't make sense for the Features panel.
 

I believe that what we want to convey in the Features panel is how to read the year, not really the length or the divisions of the year. Is it really useful to mention “Julian”? Maybe it can be explained only in the tooltip (or separate page) and the Features panel could show just “Galba era” or “Galba regnal year”. What do you think?

The same would apply to many other calendars on Numista.

Thank you for adding the calendar!

Xavier

I agree the label “Rome - Galba era” might be useful for selection on the edit page, but it doesn't make sense for the Features panel.

That's indeed useful for editing. I think I was actually confused thinking that “Rome - ” refers to the Roman calendar.

XavierI believe that what we want to convey in the Features panel is how to read the year, not really the length or the divisions of the year. Is it really useful to mention “Julian”? Maybe it can be explained only in the tooltip (or separate page) and the Features panel could show just “Galba era” or “Galba regnal year”. What do you think?

My comment was more to the fact that the “Galba era” is not a calendar at all. It's just an era (or epoch). The calendar was Julian. 

I think on Numista, these two concepts are mixed. I understand a calendar is usually just a system that defines how time is structured. How many days in how many months in a year, weeks, leap years, following solar or lunar cycles, etc. But a calendar doesn't actually set how years are numbered, i.e. the reference year (era or epoch) and the starting day for the year. 

The Gregorian and Julian calendars usually have the (supposed) birth of Christ as a reference (Christian Era / Anno Domini / Common Era). But these calendars can follow other eras. For example, the Julian calendar used by the Byzantines and Russia until 1700 had the Anno Mundi as a reference era. E.g. This coin  is dated ‡З.PЗO (7162 AM = AD 1654). 

Similarly, an era can be used in different calendars. E.g. the Hijri era is used in both the Islamic and Gregorian/Iranian calendars.

That's why I think this would be more accurate:

Calendar  Julian (Galba era)

Calendar  Islamic (Hijri era)

Calendar  Julian (Anno Mundi)

Calendar  Roman (Pompeian era)

Sometimes when a calendar uses exclusively a single era, it's enough to say:

Calendar  French republican (Republican era)