IMAGE

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special event: the International Day of Light
organization: United Nations
organization: UNESCO

 

https://www.lightday.org/about

 

on the web | pages

the International Day of Light | home

 

 

 

 

on the web | learning

laser

 

— notes —

UN = United Nations
UNESCO = United Nations Educational, Scientific, and Cultural Organization

LASER =

* United Nations is org.
* UNESCO is org.