Chronology has been a hotly debated issue since the beginning of archaeology as it is the very basis of analysis of all cultures and their mutual relationships. Searching for analogies and relationships with the eastem Mediterranean area, in particular Egypt with its well recognised chronology, has been to date a major method of establishing calendar dates for the Aegean zone. The produced chronologies enabled an absolute dating of the volcano eruption on the Cycladic island of Thera to the 16th century BC (c. 1500-1520 BC), and at the same time the end of the Late Minoan period IA. Later application of a range of scientific methods (dendrochronology, radiocarbon, termoluminescence, physico-chemical methods) rather than helping out in resolving absolute chronology controversies, contributed to further deepening of existing dispute and triggered many objections. Dates produced by these methods turned out to considerably otder than those delivered by comparative analyses. A difference was within the range of 100 years. The produced chronologies consequently enabled dating of the volcano eruption on the island of Thera to the 17th century BC (c. 1628 BC) and consequently pushed back the end of the Late Minoan period IA. Consequently, the milieu of the Aegean scholars has been split up since the 1980s into two camps. The first group remains convinced by the old conventional chronology while the group of supporters of a 'new' chronology firmly rejects it.