Shakespeare took a lot of superstitious beliefs from his time and put them into this play. He probably uses that method to get the crowd into the play a little more. Shakespeare probably was a superstitious person himself after reading his plays you can really tell that he was.
In The Tragedy of Julius Caesar superstition was used constantly. In the first appearance of Julius Caesar, Shakespeare used superstition. Julius Caesar wasn't a superstitious person compared to other characters in the story. Julius Caesar was the type that thought that superstition was for those other people with problems like the common people. If people back then weren't superstitious then they were said to have bad luck. In the first scene with Julius Caesar a soothsayer came to him to warn him about the ides of March. Caesar did not believe him because of his belief that superstition was not real. Everyone else who heard the soothsayer took what he said into consideration.
The most superstitious person in Julius Caesar had to be his wife Calpurnia. Calpurnia had the dream that Caesar was going to die. She really thought that it could happen because of her superstitious beliefs. She couldn't forget about that dream so the next morning she told Caesar that he should stay home because of her dream but he thought that nothing could hurt him especially if he doesn't believe in superstitions. Calpurnia kept on thinking that he was in danger because of her superstition of her dream.
Later we find out that Caesar does die. Shakespeare put this in the play to probably persuade the audience to be superstitious. He used the fact that Caesar wasn't superstitious so he died because of that. The Calpurnia dream was a really big part of the play to tell you what kind of man Caesar really was because he didn't believe his own wife.
Other superstitious situations in the play involved characters that were not even alive. In the second act the ghost of Caesar a...