Which day do you prefer to wrap the week?
@urusan I was wondering, why is 7 days the number people agreed on for the most universal unit of time keeping around the world?
@digital_carver another benefit of a theory like yours, is that lunar phases are almost universal all across the world, which would explain why this is not a unit generally disagreed upon.
@csddumi
Yeah, that's what got me thinking in this direction - knowing that a lot of ancient cultures used a lunar calendar, and in India even today the original lunar calendar (the "Hindu calendar") is pretty important. So it's a commonality among many cultures, even those that wouldn't have been in contact back in the day.
@csddumi
Another thing that's true for India and maybe true for some other cultures too, is that there were thought to be 7 planets in the sky - Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn (the others weren't visible). And the days of the week are named after them in India. So maybe that's the other part of it - 7 also corresponded to the number of known "planets". And people probably postulated some kidn of significant relationship between the planets and the days of the week.
@digital_carver a question could be: Why aren't there cultures preferring other divisors of 28? Like 14 or 2?
Although, 14 days are grouped in a fortnight and 2 is probably a unit too small to be of any practical use.
@digital_carver @csddumi a lunar cycle is 29.5 days long tho, which is also reflected on that lunar calendar has alternating month length of 29 and 30. afaik in the middle ages the sinosphere divided into 3 weeks of 10 days
@digital_carver
It's certainly true, that the 7 day week predates the solar calendars (Caesarian and Georgian) and thus probably relates to the lunar calendars.