The Communist Party of China was founded with Chen Duxiu as the leader.
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The Morse code distress signal 'SOS,' originating from Germany, became the world's official message for help.
The first US postage stamps were issued.
The first of four fatal shark attacks happened on New Jersey shores.
The US aired its first-ever TV commercial.
The UK returned Hong Kong's control back to China after 156 years of British rule.
