The Pink Star Diamond sold for a record USD 71 million in Hong Kong.
Source
Bill Gates and Paul Allen founded Microsoft.
Beyoncé and Jay-Z married with only 40 guests present on their special day.
Elon Musk bought a 9.2% stake in Twitter, amounting to $2.9 billion.
US Congress released a US flag that featured 20 stars and 13 red and white stripes.
Martin Luther King Jr. was assassinated.
