WikiLeaks published the first US diplomatic cable leak provided by Chelsea Manning.
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The Perseverance rover successfully landed on Mars.
The first Ironman Triathlon was held in Kona, Hawaii, USA.
The Sahara Desert temperature dropped so low that some areas became covered in snow.
The first official Church of Scientology opened in Los Angeles, California, USA.
Winston Churchill gave his first speech in the British House of Commons.
