A steamboat patent was granted to the American engineer and inventor Robert Fulton.
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Argentina canonized its first female saint, Saint María Antonia de Paz y Figueroa.
The comic book 'Archie' was first published.
Nelson Mandela was released from prison after being incarcerated for 27 years in South Africa.
Margaret Thatcher became the leader of the British Conservative Party.
The Holy Emperor Charles V and King Henry VIII of England became allies against France.
