The Pink Star Diamond sold for a record USD 71 million in Hong Kong.
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Thousands of anti-government protesters disrupted Hong Kong International Airport.
Protestors took to the streets in Hong Kong after the government announced a ban on face masks.
Cathay Pacific Airways, Hong Kong's flagship airline, was founded.
More than 100,000 people attended a vigil in Hong Kong to commemorate the Tiananmen Square Massacre.
The UK returned Hong Kong's control back to China after 156 years of British rule.
