UNESCO declared May 16 the International Day of Light, which is celebrated every year by numerous laser and light-related events around the world
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UNESCO declared May 16 the International Day of Light, which is celebrated every year by numerous laser and light-related events around the world
Text from Wikipedia, available under CC BY-SA 4.0.
Captured 2026-08-18 from Wikipedia. The archived copy is preserved so this citation survives link rot.