Recent comments in /f/history

Mr_B0b_Dobalina t1_j3hlwpu wrote

More that these cities were heavily planned, and every building had to be in orientation with the city plan. Individuals weren't making decisions on how to build their buildings.

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iron_horseshoe88 t1_j3hksxb wrote

I just finished World Undone. It was a good read approximating something of a very detailed timeline of the war. It doesn't (and often acknowledges it can't) delve too deeply into specific battles and events, but has enough detail to tell the story of the war with sufficient breadth.

Have you found anything (or previously read anything) that has a similar layer of detail bridging the story from World War I to World War II?

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taversham t1_j3gy6tq wrote

The British Museum has already digitised and made accessible nearly 4.5 million of the 8 million objects in its collection, and the project is continuing. I don't think that's really hiding it.

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ShroudedScience t1_j3gqr32 wrote

I would think that they used little tricks to cool down. Drinking lots, staying indoors as far as possible, wearing cowboy hats (maybe?) but most of all in hot climates the infrastructure tends to be adapted to deal with heat.

Structures like verandas really help reduce the amount of heat entering a building.

But I imagine productivity and just general satisfaction with life probably dropped significantly during this period.

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VagueSomething t1_j3gozal wrote

The list of evil and bad they're involved in is long but people tend to forget about how they're hiding human history that may have vital details to widen our understanding of many things.

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Gloomy_Possession-69 t1_j3gnzk9 wrote

Don't forget the human menstrual cycle is quite regular as well. Could have been around 26 days so it would cover two "glyphs" which seems to be like months.

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WanderingAnchorite t1_j3gfpc6 wrote

I have done zero research but here's my guess.

Modern pregnancy lasts 280 days.

Malnutrition and other lifestyle factors shorten that, so a 260-day gestation may have been standard, at the time and in that place.

The corn part, I imagine, is actually broken down into three cycles of just over 86 days, which is right around how long corn takes to go from seed to harvest: so each year allowed for three cycles of crop, because they were in the tropics, where you can grow all year.

It's also important to understand that this idea of "day" is different, in cultures who use multiple calendars - the Chinese and the Jewish are known for using both a solar and a lunar calendar, which don't sync up, but are used together to understand one's position in time.

I'd guess that's more how this calendar worked, as it was more about seasons than it was about the length of a day, because it's not like you'd have a 260-day year that resulted in 33-hour days: you can't change the earth's rotation any more than you can the position of the moon and stars.

So the functional day was still 24-hours-ish, but then there was another calendar used for rituals, planting, etc.: basically every civilization makes calendars to figure out when floods come.

Floods bring fertility to the soil, allowing it to produce - that's why all major civilizations originate in flood plains - it's why, once you figure out the flood cycle, complex language and temporality emerge very quickly.

Humans are already familiar with cyclic floods in our own, everywhere we exist, from pre-history: we saw that people producing children also seemed to have a cycle and it gets kinda'...wet.

Women's menstrual cycle has been referred to as a "flood" in many cultures, throughout history, strengthening this connection, with the time of menstruation also called a "moon," in many cultures, strengthening that connection, as well.

In ancient Rome, the owning couple was required to have sex in any newly-anointed agricultural field, to ensure productivity.

Connections between sex and agriculture exist in nearly every culture.

So my guess is that the Mesoamericans were birthing slightly malnourished children slightly premature, and it was the standard at the time, while also bringing in a corn crop three times a year (let's call them "trimesters" wink wink).

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unechartreusesvp t1_j3gdvay wrote

Actually not only sun and moon, but also Venus, and other celestial objects.

Many sites include some astronomical observation points, done of them to keep the solar year calendar in place, like knowing when to add more days to accommodate the 365 solar year in conjunction with the the solstices.

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unechartreusesvp t1_j3gdl3g wrote

The 260 days calendar is exclusively for ritual purposes. It's used in conjunction with other astronomical calendars: Solar calendar of 360 days (plus 5 bad days...) Moon calendar, and also a Venus calendar (this one quite important!)

And other bigger cycles.

The Dresden codex it's a beautiful and rich ritual calendar, really interesting.

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