Hong Kong began to slaughter the city’s 1.6 million chickens to stop the spread of an influenza strain.
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LinkedIn was founded by Reid Hoffman and the founding team members from PayPal and Socialnet.com.
NASA's James Webb Space Telescope began the multi-day process of unfurling its sunshield.
Iowa became the 29th state to join the United States of America.
Vladimir Putin signed a law banning the US adoption of Russian children.
President Richard Nixon signed the US Endangered Species Act into law.