Nero is famous with the Great Fire of Rome. This was also an event which held symbolic significance as the end of a phase in the human civilization and beginning of another. Such as the recent Notre Dame fire which we understand in the context of endings and beginnings.
24 degrees Sagittarius
Sagittarius is a Fire Sign. Its element is fire. Sagittarius, as a mutable fire sign is about spreading inspiration, spreading philosophy and teachings to the others, it perhaps may also be about spreading fire as well.
As Notre Dame burned, Jupiter was standing still slowy beginning to move retrograde at 24 degrees of Sagittarius.
24 degrees of Sagittarius is also significant in the natal chart of Nero the Roman Emperor.
Above is the natal chart of Nero as taken from Astrotheme.com
In this chart, 24 degrees of Sagittarius is the Sun/Mars Midpoint. Any astrology student can see the weight of Fire Element in this chart.
24 degrees of Sagittarius shows itself both of these events.