Gliese 229B became the first brown dwarf to be seen and identified by astronomers.
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NASA's Saturn I rocket was tested for the first time in Mission Saturn-Apollo 1.
The first successful operation of conjoined twins joined at the head was completed in New Delhi, India.
Inventor Fred Waller patented the aquaplane, which would become water skis.
Roman Emperor Constantine had his Vision of the Cross.
US President Woodrow Wilson announced the country would never fight another country for territory again.
