Chronology (from Latin chronologia, from Ancient Greek, chronos, "time"; and, ) is a chronicle or arrangement of events in their order of occurrence in time, "chronology" at WordNet 3.0, "History" such as a timeline. It is also "the determination of the actual temporal sequence of past events". Chronology is part of periodization. It is also part of the discipline of history, including earth history, the earth sciences, and study of the geologic time scale (see Prehistoric chronologies below).… (More on Chronology)