Use this tag when asking about the chronological order of specific events in a science fiction or fantasy story. If asking for the chronological ordering of entire works in a series, use the [chronological-order] tag instead.
From Wikipedia:
Chronology (from Latin chronologia, from Ancient Greek χρόνος, chronos, "time"; and -λογία, -logia) is the science of arranging events in their order of occurrence in time, such as the use of a timeline or sequence of events. It is also "the determination of the actual temporal sequence of past events".
In our context, this tag is for questions involving the order in which events took place in a fictional work. If asking for multiple works in a series to be placed in chronological order, use the chronological-order tag instead.