Which event in the play is a supernatural sign that both romans and elizabethans would have recognized as a bad omen?

Christmas day is a supernatural sign

The appearance of a spirit, or other natural events that are out of the ordinary, such as an owl being awake during the day

Explanation:

I'm going based off of the actual history aspect, as well as the Julius Caesar play which i recently read.

I hope i helped in some way shape or form! good luck

1492

columbus changes the shape of the world

ferdinand and isabella unite and create catholic spain

jews and moslems driven out of spain

lorenzo de medici dies

no one buying art and supporting city like before, his brother had been assassinated slightly before

florence to rome renaissance shift

east to west transition of church administration to the vatican