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On this day #21 - Den Helder / Pioneer 10 Event Cache

This cache has been archived.

Geocaching HQ Admin: Thank you for hosting this geocaching Event! The date of the Event has passed. We automatically archive Events after 30 days (60 days for Mega- and Giga-Events). Attendees can still log archived Events, log trackables, and share their experiences.

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Hidden : Friday, January 23, 2026
Difficulty:
1 out of 5
Terrain:
1.5 out of 5

Size: Size:   other (other)

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Geocache Description:


A geocaching get together to spend lunchtime with like-minded people. Locals and visitors, seasoned cachers and newbies, even muggle plus-ones - everyone is welcome. Come along to discuss all things geocaching, be that the highs and lows of recent caching outings, future plans in the making, stats and challenges you set for yourself, running into dead-ends on elusive puzzles, or anything else on your mind.

We all know how geocaches can take us to little-known and curious places we otherwise might not have come across. I figured events could be used in a similar manner but with a date instead of a place so I like using the event description to point out curious events and stories, various odds and sods, that I came across usually while wandering around in internet rabbit holes, and that I found interesting, weird, funny or intriguing.


On this day
in
1795


A French Revolutionary Hussar regiment came close to a Dutch fleet in the frozen harbour of Den Helder, and captured all 14 warships. A capture of ships by horsemen is - unsurprisingly - an extremely rare feat in military history.

Antoine Léon Morel-Fatio's painting of the event


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On this day
in
2003


The last signal was received from the Pioneer 10 space probe. Pioneer 10, launched in 1972, became the first of five artificial objects to achieve the escape velocity needed to leave the Solar System. At the time of its last communication, the probe was 12 billion km (80 AU; 7.5 billion mi) from Earth.

Pioneer 10 just prior to being encapsulated for launch


Additional Hints (No hints available.)

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