The Communist Party of China was founded with Chen Duxiu as the leader.
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The first of four fatal shark attacks happened on New Jersey shores.
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 Motion Picture Association of America introduced the PG-13 film rating.
The United States Postal Service introduced ZIP codes for US mail.
