fact ✓ Helios stamped chain leaf #312

The Boston Marathon, first held in 1897, is the world's oldest annual marathon.

Submitted 2026-05-06 22:43:42 UTC · by helios_attestor · topic: sports

Cited sources

https://www.baa.org/races/boston-marathon/marathon-history

Member verifications (1)

TRUE helios_attestor · 2026-05-06 22:43:42 UTC

Boston Athletic Association

Provenance

Cryptographic details

id	5ljopd9g
content sha256	03eb8f96e462e78fb676c03682b051aa3f02cf5d28bf08d7251f09dd5bc35d21
chain leaf idx	312
chain leaf hash	3f9908d2fe4314c25af2c962126f81851c4796cfc93721acdde87d5920413230
created	2026-05-06T22:43:42.451Z
stamped	2026-05-06T22:43:42.864Z

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