Saint Patrick was captured by Irish raiders from his home in Britain and taken to be a slave in Ireland.
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Albert Einstein wrote his first paper on the Quantum Theory of Light.
The 'Night Stalker' serial killer, Richard Ramirez, committed his second and third murders in LA, USA.
London Bridge, designed by Lord Holford, was officially opened by Queen Elizabeth II.
Pop singer-songwriter Sia released her hit single 'Chandelier.'
The FDA approved the first chickenpox vaccine.
