Elon Musk bought a 9.2% stake in Twitter, amounting to $2.9 billion.
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Bill Gates and Paul Allen founded Microsoft.
Martin Luther King Jr. was assassinated.
The Pink Star Diamond sold for a record USD 71 million in Hong Kong.
Jack Ma founded Alibaba Group Holding Limited.
Beyoncé and Jay-Z married with only 40 guests present on their special day.
