The conception and fertility data is really interesting. If I’m reading it correctly, a lot of shagging is going on when it warms up in spring.
Then giving birth mainly in the winter.
I guess it lines up with a population that were mostly farmers at the time. Winter is the slow season. Pop out a kid when it’s not busy, then back to planting rice when the frost is over. Women be tough as nails.
For those curious about the dark streak in 1966, lookup the year of the fire horse (Hinoe-Uma).
Superstation has it that women born that year will be terrible wives, so people actively avoided having a baby that year.
It’s a 60 year cycle so 2026 is fire horse again, though I very much doubt it will affect births this time around.
The dip in births in 1966 is due to a [superstition](https://en.wikipedia.org/wiki/Fire_Horse) based around the Chinese [Sexegenary Cycle](https://en.wikipedia.org/wiki/Sexagenary_cycle), which is basically the 12 years of the Chinese zodiac combined with the five elements for a cycle that repeats every 60 years. Evidently the specific combination of fire and horse is unlucky in Japan, since girls born that year are believed to cause ruin and death of their husbands.
The origin of this superstition is Japan-specific, dating back to 1683 where a girl named [Yaoya Oshichi](https://en.wikipedia.org/wiki/Yaoya_Oshichi) was burned at the stake for committing arson. The plays, etc. that dramatized the incident made much of her being born in the year of the fire horse, which started the superstition.
September seems to be the highest birth month.
Any reason?
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The conception and fertility data is really interesting. If I’m reading it correctly, a lot of shagging is going on when it warms up in spring.
Then giving birth mainly in the winter.
I guess it lines up with a population that were mostly farmers at the time. Winter is the slow season. Pop out a kid when it’s not busy, then back to planting rice when the frost is over. Women be tough as nails.
For those curious about the dark streak in 1966, lookup the year of the fire horse (Hinoe-Uma).
Superstation has it that women born that year will be terrible wives, so people actively avoided having a baby that year.
It’s a 60 year cycle so 2026 is fire horse again, though I very much doubt it will affect births this time around.
The dip in births in 1966 is due to a [superstition](https://en.wikipedia.org/wiki/Fire_Horse) based around the Chinese [Sexegenary Cycle](https://en.wikipedia.org/wiki/Sexagenary_cycle), which is basically the 12 years of the Chinese zodiac combined with the five elements for a cycle that repeats every 60 years. Evidently the specific combination of fire and horse is unlucky in Japan, since girls born that year are believed to cause ruin and death of their husbands.
The origin of this superstition is Japan-specific, dating back to 1683 where a girl named [Yaoya Oshichi](https://en.wikipedia.org/wiki/Yaoya_Oshichi) was burned at the stake for committing arson. The plays, etc. that dramatized the incident made much of her being born in the year of the fire horse, which started the superstition.
September seems to be the highest birth month.
Any reason?
Age *15* To 44. Dafuk?
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