Italians voted to form a republic instead of a monarchy.
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Inventor and electrical engineer Guglielmo Marconi applied for the patents for the radio.
One hundred volunteers in Bhutan set a new Guinness World Record when they planted 49,672 trees in one hour.
Mexico elected its first female president, Claudia Sheinbaum.
NASA's UK-6 was launched into space.
Her Majesty The Queen became the first British Monarch to celebrate a Platinum Jubilee.
