The first telephone was installed in the telegraph room in the White House, thanks to President Rutherford B. Hayes.
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Uber became a public company, opening on the New York Stock Exchange.
Nelson Mandela was sworn in as South Africa's first black president.
Apple became the first company to achieve worth more than $800 billion.
An atomic submarine circumnavigated the globe.
US Geological Survey issued a statement revealing that 39 Montana glaciers have reduced in size from 39 to 85 percent in the last 50 years.
