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#timekeeping

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STREET ART UTOPIA

Busy day at Stonehenge as the stones are moved forward one hour

Stonehenge is one of the world's most iconic prehistoric monuments, but did you know that parts of it have been moved in modern times? This fascinating image shows a moment from the 1950s restoration efforts, but with a humorous twist—it almost looks like the stones are being adjusted for daylight saving time! Of course, no one is actually resetting Stonehenge for daylight saving time—but this real historical photo from the 1950s restoration efforts makes it look that way! The Real […]

streetartutopia.com/2025/03/09

STREET ART UTOPIA · Busy day at Stonehenge as the stones are moved forward one hour - STREET ART UTOPIA
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#ancientmonuments#archaeology#britishheritage
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Infrapink (he/his/him)

Homer (not Simpson), Hesiod, and Euripides describe the beginning of Winter as being when the Pleiades, the Hyades, and Orion set just before sunrise, at the same time as Greeks hear crane calls.

When they were writing, this would have happened around the halfway point between the southward equinox and the southern solstice, same as how the Celts and Chinese reckon the seasons.

#calendars#timekeeping#history
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Infrapink (he/his/him)

The Borana group people into age-based and generation-based groups, which are completely independent.

Every eight years, leadership passes to the next generation group in an endless cycle. Historians identify time not by years, which are a little vague in Borana philosophy, but by which generation group was in authority at the time.

Legesse literally wrote and entire book about this, which I got from Anna just for the calendar stuff.

Thank you for reading.

12/12

#calendars#timekeeping
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Infrapink (he/his/him)

The issue here is that 28 days doesn't match up with any lunar cycles. The synodic month is a shade over 29½ days long, so any timekeeping system that synchronises with the phases of the moon will have months of 29 or 30 days.

The sidereal and draconic months are just over 27 days long; months that synchronise with those moon cycles will occasionally be 28 days long, but will more often have 27 days.

3/12

#Months#Moon#Timekeeping
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Infrapink (he/his/him)

Polynesians kept time by the moon; each lunar month had a particular name and meaning corresponding to the season in which it fell, but there was no real concept of years until Europeans came along.

The Kiowa appear to have been the opposite. They kept pictorial records of history, with standard symbols to indicate summer and winter, and a picture to represent the most significant event of the season: kiowacalendars.org/calendars

The Kiowa Calendar ProjectThe CalendarsView the history of the Kiowa to in the 19th century through the calendars they kept.
#Kiowa#Calendars#Timekeeping
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