King Louis I of Holland abdicated in favor of his son Napoléon Louis.
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The Motion Picture Association of America introduced the PG-13 film rating.
The UK returned Hong Kong's control back to China after 156 years of British rule.
The Cassini–Huygens spacecraft became the first to enter Saturn's orbit.
Tesla Motors was incorporated in Palo Alto, California, US.
The United States Postal Service introduced ZIP codes for US mail.
