Permanent claim record · Dearborn, Michigan

The original 1920 Potts traffic signal — the world's first tri-color, four-way — is preserved at The Henry Ford Museum in Dearborn.

Verified

Raw value (vault-stripped)

{"tags":["traffic-light","henry-ford-museum","museums"],"text":"The original 1920 Potts traffic signal — the world's first tri-color, four-way — is preserved at The Henry Ford Museum in Dearborn.","category":"history"}

Predicate	trivia.fact
Subject	Dearborn, Michigan (place)
As of
Status	Verified
Source	Michigan Pop Culture, Game Shows & Trivia Content Mine — Perplexity Deep Research (March 2026) (trust 6.5/10)
Reference	—
Document hash	pending evidence-pack link
Provenance chain
Claim ID	3d1bb0bd-cc17-401e-96f2-0718f89774de