30
/fr/
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
3592455
327925
2
Public Timelines FAQ
Public TimelinesFAQ
Public TimelinesFAQ
For educational institutions For teachers For students Open cabinet
For educational institutions For teachers For students Open cabinet
Créer
Create a timeline
Public timelines
Library
FAQ

1 janv. 1918 - First three-coloured light signals in New York. Police operated.

Ajouté au bande de temps:

Traffic signals history

Bycse
9 déc. 2019

Date:

1 janv. 1918
Maintenaint
~ Il y a 106 ans
About & FeedbackUn accordConfidentialitéBibliothèque
2024 © Time.Graphics
Support 24/7  
CabinetGet premium
Donate
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL
Excellent (Trustpilot Reviews)
Based on 115+ reviews