

I’m going to be the “um, akchually” person:
Lunar calendars, like the Chinese and Jewish ones, have leap months for the same reason the Gregorian calendar has leap days: to keep our seasons in line. It’s an entire, extra doubled-up month. However, one would say that year has 13 months, not 12. (At least for the Chinese calendar, not sure about the Jewish one.)







You may be interested to read about the scheme of intellectual and ethical development by William Perry. This website has it discussed only in terms of cognitive development, but I think you’ll see how it directly correlates to ethical development: https://neurolaunch.com/perrys-theory-of-cognitive-development/