Princess Mary Stuart succeeded her father James V and became Queen Mary I of Scotland at just six days old.
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Northern Germany and the Netherlands were struck by St. Lucia's flood, killing more than 50,000 people.
A British surgeon admitted to branding his initials on patients' livers.
The Mariner 2 space probe completed the first-ever flyby of Venus.
The European Union formally opened accession negotiations with Ukraine.
Alabama became the 22nd state to join the United States of America.