occasions — a particular time, especially as marked by certain circumstances or occurrences: They met on three occasions.
appearances — the act or fact of appearing, as to the eye or mind or before the public: the unannounced appearance of dinner guests; the last appearance of Caruso in Aïda; her first appearance at a stockholders' meeting.
programs — a plan of action to accomplish a specified end: a school lunch program.
occurrences — the action, fact, or instance of occurring.