Chronology (from Greekχρονολογία - chronologia, from χρόνος - chronos, "time" + λόγος - logos, amongst others "the study of") is a chronicle or arrangement of events in their occurrence order. General chronology is the science of locating and resolution of temporal sequence of past events in time.
Chronology is part of periodization. It is also part of the discipline of history including earth history and geochronology dependent disciplines (See Prehistoric chronologies below) and the earth sciences. When used for specific examples, a chronology is a sequential arrangement of events, such as a chronicle or, particularly when involving graphical or literary elements, a timeline.
The Phantom time hypothesis is a conspiracy theory developed in the 1980s and '90s by German publisher Heribert Illig (born 1947 in Vohenstrauß, Germany). The hypothesis proposes that periods of history, specifically that of Europe during the Early Middle Ages (AD 614–911), did not exist, and that there has been a systematic effort to cover up that fact. Illig believed that this was achieved through the alteration, misrepresentation and forgery of documentary and physical evidence.