US Congress released a US flag that featured 20 stars and 13 red and white stripes.
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Martin Luther King Jr. was assassinated.
Bill Gates and Paul Allen founded Microsoft.
Elon Musk bought a 9.2% stake in Twitter, amounting to $2.9 billion.
The 21st Commonwealth Games officially began on the Gold Coast, Queensland, Australia.
The Kangra earthquake in India killed over 20,000 people.