Precipitating Event

Every Movement requries a precipitating event. The event has a number of requirements. One is that it is follows a pattern so there are a number of people who suffer the event. Another aspect is that it is ordinary in the face of a broad community experience. Of course the movement may be defined by an actual event and the other aspects may not be as apparent.
For instance the precipitating event of the Civil Right Movement is recognized as Rosa Parks refusal to give up her seat, and her arrest. There were manyothers before her who had a similiar expereince and hers was not an isolated event.