Antigone there was one event watch caused a chain reaction. This seems to be a common theme inside of Tragedy. In antigone there was a event where two brothers ended up killing each other. The sister help buried which made the king angry and sentence her to death which cause her bride groom to committed suicide which cause her mother to commit suicide. Usually tragedies take a small event and it start to cause other events happen that start to spiral out of control. Usually the first event has unintentionally consequence.