Sunglasses Day
Sunglasses Day is held on June 27. This event in the third decade of the month June is annual. 
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They were originally invented in the 1930s to protect military pilots' eyes from the harmful high-altitude rays of the sun.
The first sunglasses were created over 2,000 years ago. The Inuit (eskimos) created snow goggles from animal bone, leather and wood. There were small slits that allowed only the tiniest of light through. This effectively shielded the eyes from the blinding glare of sunlight reflected off the snow.
Though they may have started for function and not fashion, sunglasses trends work as a pendulum. Hot sunglass trends change year-to-year, but mostly always come back in style.
Similar holidays and events, festivals and interesting facts
Beautician's Day on June 26
Canoe Day on June 26
Take Your Dog to Work Day on June 26 (Friday after Father's Day);
International Body Piercing Day on June 28
Log Cabin Day on June 28 (was originated by the Log Cabin Society in corroboration with the Bad Axe Historical society);
Paul Bunyan Day on June 28
Tau Day or Two Pi Day on June 28