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Happy Petrov day

en.wikipedia.org Reference Encyclopedia entries History & humanities Candidate
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Resurfaced independently across 11 calendar years, with breakout response in 2 of them.

submissions
17
submitters
17
observed span
2009–2025
peak thread · 30 comments
138 pts
latest 20+ return · 2023-09-26
129 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

I find it fascinating and terrifying that on the one hand, these events were "close calls", on the other hand, considering that we can celebrate this event today, they were inevitable. Logically speaking, we always must live in a world where past existential threats to humanity were avoided (including super-volcanoes, asteroids), but that says nothing about the possibility of future existential threats wiping out humanity.

VMG·138-point thread·

I'll put it on my calendar! With all there is to elicit dismay, it is a welcome breath to commemorate that on that day, we did not get hit by a bus!

I sometimes wonder what individual decisions are being made now that we'll look back on as important in a few decades. Petrov's role in the incident took 15 years to become publicly-known.

rnoorda·5-point thread·

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
2

100+ points or 50+ comments

Total points
320

reference only — not used in Hall rules or ranking

Total comments
39

reference only — not used in Hall rules or ranking

Every submission

DateTitle as submittedByPointsComments
2009-09-29Man who saved the worldaundumla30
2010-06-05The Man Who Saved the World: Stanislav Petrovmatth90
2013-02-17Stanislav Petrovbmaeser20
2013-08-25Stanislav PetrovHerrMonnezza20
2013-09-26Happy Petrov dayFirst breakout · Best threadomegant13830
2015-05-22Stanislav Petrovapo10
2015-10-28Stanislav Petrovgk120
2016-09-26Stanislav Petrovbqe10
2016-12-25Stanislav Petrovrishabhd30
2019-12-24Stanislav Petrovonetimemanytime20
2020-11-24Stanislav Petrovgtirloni30
2021-09-26Happy Petrov Daykeyb0ardninja52
2022-03-01Stanislav Petrov. The man who prevented a nuclear war in 1983flavio8770
2022-09-26Stanislav PetrovPikelEmi70
2023-01-14Stanislav Petrovsimonebrunozzi30
2023-09-26It's Stanislav Petrov day —40yrs ago he saved world by suppressing a tech glitchLatest 20+ point returntoss11297
2025-06-18Stanislav Petrovfranczesko30