Multiple airbursts, anon.
They built a temple under each one.
When the Phoenix, the fire bird, ate the sky.
The Phoenix myth is about a comet, that comes around every 26000ys, and the pieces that break of it cause multiple airburst events.
The Phoenix is reborn, that is their way of saying it comes back again.
every 26000 years, it comes back.
The last time it came, the airbursts came in a nice straight line.
A temple under each one.
Bear in mind, they had no way to correctly determine position, so it would be remarkable they were able to do this on purpose.
Its directly related, Anon.
The comet comes around every 26000 yr, or millions of visits over billions of years.
It is what caused the precession, anon
It doesn't hit us anon.
It brakes up as it goes around the sun, and the earth passes through this train of debris.
These debris cause devastating airbursts, fireballs in the sky, when the fire bird eats the sky.
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asteroid showers are common from comets, this just happens to be rather big one.