Pope Gregory XII was appointed head of the Catholic Church by a conclave of 15 cardinals in Rome.
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Michael Jackson's sixth studio album, 'Thriller,' was released by Epic Records.
Russia passed a stricter ban on 'LGBT propaganda.'
Pink Floyd released their eleventh studio album titled The Wall.
The Crystal Palace in London caught fire and was destroyed.
German archaeologist Heinrich Schliemann found The Mask of Agamemnon at the Greek site of Mycenae.
