Kangaroo fossil research showed that they may have learned to hop over 20 million years ago.
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The 11th Amendment to the United States Constitution was ratified.
A boy born without an immune system, David Vetter, left his bubble isolation for the first time, aged 12, and touched his mother for the first time.
The New York Times published a government message that the US would be rationing shoes.
It was announced that citrus fruit originated in the Himalayas millions of years ago.
Alcohol poisoning killed 144 people in the states of Uttarakhand and Uttar Pradesh, India.
