June 27·Every year

National Sunglasses Day

The first sunglasses were flat pieces of smoky quartz used by Inuit people to reduce snow glare, predating lenses by centuries. Sam Foster introduced mass-produced sunglasses in Atlantic City in 1929. Overexposure to UV light is a leading cause of cataracts — 94 million Americans own at least one pair, and most wear them incorrectly.

Category: Silly
Observed in: United StatesAustraliaUnited Kingdom

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Notable · 2018

The Japanese space probe Hayabusa2 (artist's impression pictured) arrived at the asteroid Ryugu to collect samples for return to Earth.

2024U.S. President Joe Biden debates former U.S. President Donald Trump. Biden's perceived poor performance leads to his withdrawal from the election on July 21.
2017A series of powerful cyberattacks using the Petya malware target websites of Ukrainian organizations and counterparts with Ukrainian connections around the globe.
2015Formosa Fun Coast fire: A dust fire occurs at a recreational water park in Taiwan, killing 15 people and injuring 497 others, 199 critically.