Mishalak

It's not that uncommon an idea. The French Republican Calendar had something somewhat like it with five or six days before the Autumnal Equinox so that 1 Vendémiaire would alway fall on the Equinox. Obviously the Orthodox Atheist Calendar sprung from the same idea, though with it centered on the Southern Solstice (winter in the northern hemisphere) and making sure the March 25 the day of or day after the Equinox and using Roman AUC numbering.

In the commentaries about the calendar there was some dispute as to if making March 25 as the Equinox or December 30 the Southern Solstice should take precedence until it was pointed out that until some geographical area had a plurality of Orthodox Atheists that it would be much more convenient to use a set of easy rules to convert from the standard Gregorian Calendar.