Documenta Praehistorica XLII (2015) Preceramic, Aceramic or Early Ceramic| The radiocarbon dated beginning of the Neolithic in the Aegean Agathe Reingruber Berlin, DE a.reingruber@o2online.de ABSTRACT - The Pre-Pottery-Neolithic refers to a period in the Eastern Mediterranean when ceramic containers were not yet in use (although small objects made of clay were already being created). This concept, which reflects a specific and quite unique stage in the development of human history, was introduced to Aegean prehistory under the term of Preceramic during the 1950's (e.g., in Argissa-Magoula and Sesklo). Shortly thereafter, a different term, the Aceramic, was applied in the Aegean (e.g., in Knossos) for levels devoid ofpottery, although ceramic products were supposedly used in the wider region. In some cases, the thin levels interpreted as Preceramic or as Aceramic contained sherds that were regarded as being intrusive from above (e.g., Argissa-Magoula, Franchthi Cave). The new sequences of radiocarbon dates allow a more precise description of this early period and thereby contribute, not least, also to the clarification of terminological issues. IZVLEČEK - Predkeramični neolitik označuje obdobje, ko v vzhodnem Sredozemlju keramične posode še niso bile v uporabi (čeprav so majhne predmete iz žgane gline že izdelovali). Koncept, ki se nanaša na določeno in precej posebno stopnjo v našem zgodovinskem razvoju, je bil z imenom 'predkeramicni' vpeljan v egejsko prazgodovino v petdesetih letih prejšnjega stoletja (npr. v Argissa-Ma-gouli in Sesklu). Kmalu za tem ga je nadomestil 'akeramični' neolitik (npr. v Knossosu), ki je označeval plasti brez keramičnih posod, čeprav so bile v širši regiji domnevno že poznane. V nekaterih primerih so tanke naselbinske plasti interpretirali kot 'predkeramične' ali 'keramične' s fragmenti lončenine, ki naj bi vanje prišli iz zgornjih plasti (npr. Argissa-Magoula, jama Franchthi). Nove se-kvence radiokarbonskih datumov omogočajo še posebno natančne predstavitve teh zgodnjih obdobij, in nenazadnje tudi boljše terminološke pojasnitve. KEY WORDS - Preceramic; Aceramic; Initial Neolithic; Meso-Neolithic interface; radiocarbon dates; Aegean The terminology: the impacts of Near Eastern and Anatolian research Modern archaeology saw its beginnings around 1950 with the introduction of natural sciences into archaeological methodology. In 1947, when Robert and Linda Braidwood from the University of Chicago started their interdisciplinary project in Jarmo (Northern Iraq), for the first time they worked together with a palaeoethnobotanist (Hans Helbaek), a zoologist (Charles Reed), a geologist (Herbert Wright) and a radiocarbon expert (Fred Matson) (Watson 2006. 10-11). Braidwood was also among the first archaeologists to learn about the radiocarbon method. In 1947, he provided his Chicago colleague Williard F. Libby with some of the very first ancient samples to be tested by the new dating method. Soon after, in 1949, while a professor at the University of Chicago (1945-1954), Libby then published his revolutionary results on the radiocarbon dating method (Arnold, Libby 1949; Libby 1952), for which he received the Nobel-prize in 1960. Again in 1949, Vladimir Milojcic published his influential book on chronological issues of the Neolithic DOI> 10.4312\dp.42.9 147 Agathe Reingruber in Central and Southeastern Europe, based on comparative stratigraphical observations (Milojcic 1949). Until his untimely death in 1978, Milojcic remained the most convinced advocate of this method, which depended on sound knowledge, a sharp observational spirit, and on the talent of archaeologists for identifying interrelations among distant sites and regions, in the end on subjective, qualitative analysis. At first, probably under the influence of Braidwood, Milojcic was not completely dismissive of the radiocarbon method. Between 1956 and 1958, he collected several charcoal samples from the sites of Argissa-and Otzaki-Magoula, not being shy of costs and efforts. In 1959, at the end of his Thessalien-Projekt and the beginning of his professorship in Heidelberg (Hauptmann 1994.531-532), he delivered 12 samples to the Heidelberg laboratory for radiocarbon dating. The results did not support Milojcic's chronological assessments, and from that time on, until late in his life, he became a harsh opponent of the method (Milojcic 1973). However, his critique was not completely unqualified, since, at the very beginning of radiocarbon dating, the need for tree-ring calibration was not understood. As Harald Hauptmann recollects (personal communication, 21.03.2015), it was only shortly before Milojcic's sudden death at the age of 60 that he admitted that 14C-dates could be taken into consideration. Following in the footsteps of Braidwood, Milojcic worked with the zoologist Joachim Boessneck and the botanist Maria Hopf (Milojcic 1962). However not only theoretical and methodological procedures were at issue; Milojcic met Braidwood at least twice in his lifetime: in 1958, at the international congress in Hamburg and the year after, when Braidwood visited Milojcic in Thessaly during his last excavation campaign in Otzaki (Hauptmann 2008. 3). This direct contact of the two researchers is important, since it resulted not only in an exchange of ideas, but also in the transfer of the Near Eastern terminology and vocabulary to the Aegean. For example, when in 1952 Milojcic coined the German word Prakeramikum (Milojcic 1952.315), it is clear that he was not simply translating some few words (e.g., Pre-Pottery-Neolithic, PPN) from English into German, but was actually very carefully transferring the corresponding archaeological notions and concepts from the Near East to the Aegean. The specific formulation PPN was in fact introduced by Kathleen Kenyon during her excavations at Jericho 1952-1958. To be precise, as a result of his excavations at the Tell es Sultan/Jericho layers X-XVII al- ready in 1936, John Garstang had noted that the Early Neolithic was devoid of pottery, but did have a microlithic blade industry (Garstang et al. 1936. 69). Yet, he did not give this period a specific name. Initially, Braidwood (1957.76) rejected the term PPN as meaningless, yet Kenyon justified its usage by the fact that the PPN-layers were separated from the PN-layers by a long temporal gap (Kenyon 1957a. 83). In Jericho, 3-4m high levels containing Neolithic pottery overlay meter-high levels devoid of ceramic containers (Kenyon 1957b). At least when speaking of the 'Old World', therefore, the term PPN defines the time before pottery was produced. In comparison, in the Eastern Asiatic Jomon culture, pottery was in use since at least in the 10th millennium BC, and in the North Pontic steppe since the 8th millennium BC (Piezonka 2014). As well as the exchange of ideas through the excavation leaders, the team members also brought new and first-hand knowledge from ongoing investigations in Anatolia to Greece. A good example is Hans Helbaek, who was initially part of Braidwood's team, but later also worked in Hacilar with James Mellaart and in Knossos with John D. Evans. Similarly, the archaeozoologist Sebastian Payne, who defined the Aceramic levels in Franchthi Cave, initially worked with David French in Can Hasan (1964-1967), but then with Ian Todd in Agikli, a site that was identified as Aceramic in 1964 (Payne 1973; 1985). Clearly, since a precise delimitation between the terms Aceramic used in Central and Southwestern Anatolia as opposed to the PPN used in the Levant and Zagros area had not yet been thoroughly discussed, the two terms were often used interchangeably. Understandably, therefore, what we observe is that whether the two different notions were introduced into Greek research strongly depended on the personal relationships between the archaeologists working in the Aegean with their specific colleagues, who could either be active in the Near East (Palestine and Zag-ros) or in Asia Minor (Central and Western Anatolia). Yet the usage of the terms Preceramic and Ace-ramic should not be fortuitous. The Preceramic, in particular, is tied to a specific concept: it covers a period when ceramic products were not yet in use, and this reflects a certain stage in the development of mankind (Nissen 2012.169-170) prior to 7000 calBC. For Knossos in the Aegean, Evans proposed that Aceramic should refer to those levels that do not contain ceramic containers, even though pottery was actually in use in the wider region (Evans 1964; Warren et al. 1968.271). 148 Preceramic, Aceramic or Early Ceramic| The radiocarbon dated beginning of the Neolithic in the Aegean In the present paper, we respect this distinction, but argue that a more precise definition of relevant words and concepts will strongly reinforce our understanding of the earliest sedentary communities in the entire Aegean sphere. Certainly, one could object that the concepts involving the production (or not) of ceramic containers cover by no means the complete range of social and cultural behaviour during the Meso-Neolithic interface, and indeed that pottery often appears to be more meaningful to prehistoric archaeologists than it may have done to prehistoric communities. Nevertheless, given that these terms are so widely applied, it does appear useful to study in detail the historical reasons for their initial introduction, and also to account for the alternative meanings given to these terms by different scholars in different regions. The situation near the Aegean coasts: Thessaly, Crete, the Argolid, and Western Anatolia The Preceramic layers of the Argissa-Magoula were excavated in 1956 and 1958 by Milojcic, at that time a professor at the University of Saarbrücken. Some 120 sherds were collected from these lowest levels, some 30cm thick (if we take into consideration the so-called pits then the height totals up to 50cm thickness in the deepest parts). The sherds were interpreted by the excavator as intrusive since they were comparable to the pottery from the above level, and were consequently excluded from discussion (Milojcic 1962.14). In 1957, at a time when Milojcic was pausing from the excavations in Argissa, Dimit-rios Theocharis cleared the collapsed northern profile at Sesklo, where he confirmed Milojcic's appraisal that a Preceramic period existed at the start of the Neolithic in Thessaly (Theocharis 1967). Subsequently, Theocharis carried on this work at Soufli-Magoula and also at Achilleion. At both sites, excavations were also conducted thereafter, but no Preceramic levels were encountered. Sesklo and Gediki are therefore the only so-called Preceramic sites where re-investigations would be necessary to clarify the situation (for detailed appraisals of stratigraphic and contex- Fig. 1. Sites of the Preceramic, Aceramic, Pre-Pottery-Neolithic, Initial Neolithic and of the Early Pottery Neolithic in the Aegean. tual analysis of finds and l4C-dates connected to the Preceramic levels, compare Reingruber 2008). At the end of that decade, in 1957-1960, two new projects were initiated by the British Institute, one led by Mellaart (who had been working with Ken-yon in Jericho in 1952: Kenyon 1960.VI) in Hacilar in the SW-Anatolian Lake District, the other by Evans in Knossos on Crete (Fig. 1). Both excavators interpreted the lowest levels of their sites that were found to be devoid of pottery as Aceramic. When Evans reached the 10-20cm thin lowest level at Knossos he preferred this label, because he presumed that pottery was not in use yet, but was already circulating in the larger area (Warren et al. 1968.271). Evans later revised his interpretation of Knossos X as a temporary camp, but kept the label Aceramic (Evans 1971.95-117). As it appears, this specific concept of the Aceramic implies that pottery had already been invented, but was not in use on a specific site for various reasons. In Franchthi Cave, the archaeozoologist Payne was the first to define the so-called 'gray clay-stratum' as pertaining to an early, even Aceramic, group of people (Payne 1973 59-66). In view of the very small number and the small size of the sherds found in this stratum Thomas Jacobsen termed it as "possibly Aceramic Neolithic" (Jacobsen 1969.352). This term is also used by Karen Vitelli (1993). Catherine Perles variously speaks both of an Aceramic or of a Preceramic phase (Perles 2001.46, footnote 18). In 2001, 149 Tab. 1. Selected 14C-dates from Franchthi, Knossos and Ulucak falling into the flat part of the calibration curve (first half of the 7th millennium BC, compare Fig. 6). Agathe Reingruber Site Lab. No. BP ± calBC 10 Sample material Level Provenance, Reference Franchthi GifA-80049 8025 45 7070-6830 Charcoal Final Mesolithic FAN 169 (Perles et al. 2013) Franchthi GifA-80048 7990 40 7050-6820 Charcoal Final Mesolithic FAN 166 (Perles et al. 2013) Franchthi GifA-80046 7935 40 7030-6690 Charcoal Final Mesolithic FAN 166 (Perles et al. 2013) Franchthi GifA-80043 7910 40 6910-6670 Charcoal Initial Neolithic, Grey clay stratum FAN 151, 33g of sherds (Perles et al. 2013) Franchthi GifA-80045 7875 40 6780-6640 Charcoal Initial Neolithic, Grey clay stratum FAN 159, no sherds (Perles et al. 2013) Franchthi GifA-11016 7805 40 Seed Final Mesol./ Initial Neolithic FAN 163, no sherds (Perles et al. 2013) Franchthi GifA-11455 7740 50 Seed Final Mesol./ Initial Neolithic FAN 163, no sherds (Perles et al. 2013) Franchthi R_Combine: GifA-ii0i6+ GifA-11455 7780 32 6650-6590 From same sample Franchthi GifA-11017 7780 40 Seed Initial Neolithic, base of gray clay str. FAN 162 [1], no sherds (Perles et al. 2013) Franchthi GifA-11456 7645 50 Seed Initial Neolithic, base of gray clay str. FAN 162 [2], no sherds (Perles et al. 2013) Franchthi R_Combine: GifA-ii0i7+ GifA-11456 7728 32 6600-6500 From same sample X-Test fails at 5% X2-Test: df = 1 T = 4.428(5% 3.8) Franchthi GifA-80044 7555 40 6460-6400 Charcoal Initial Neolithic, Grey clay stratum FAN 158; 1 sherd (Perles et al. 2013) Knossos OxA-9215 7965 60 7040-6770 Charred seeds (Quercus evergreen) Level 39/1 Trench II, depth 7.8 m (Reingruber, Thissen 2009) Knossos X BM-124 8050 180 Charcoal (Quercus) Stratum X; Area AC, level 27 Central Court, Pit F, Sample 1, (Barker, Mackey 1963.104) Knossos X BM-278 7910 140 Charcoal (Quercus) Stratum X; Area AC, level 27 Central Court, Pit F, Sample 1, (Barker et al. 1969.280) Knossos X R_Combine: BM-278+ BM-124 7964 111 7050-6700 From same sample Knossos X BM-436 7740 140 6770-6430 Seed Stratum X, Area AC, level 27 Central Court, Pit F, Sample 1, (Barker et al. 1969.280) Ulucak VI Beta-269727 7950 50 7030-6710 Charcoal L13a unit 43 (hearth) (Qlingiroglu et al. 2012) Ulucak VI Beta-250265 7910 50 6990-6650 Charcoal L13a red painted lime floor (Qlingiroglu et al. 2012) she proposed the term Initial Neolithic (compare Perles 2001.64) Recently, the lowest levels in Ulucak near Izmir devoid of pottery have been compared to the Anatolian PPNB, especially in respect to the "elaborately painted plaster floors" (Qilingiroglu, Qakirlar 2013. 26). From a technological point of view these floors are considered to be similar to those found in Ace-ramic Hacilar and at PPNB-sites further east (Qilin-giroglu, Qakirlar 2013.24). Detailed descriptions of this specific technology will be essential in support of such broad supra-regional comparisons. In an attempt to overcome this terminological medley, it has been suggested that we use the name Initial Neolithic to describe the relevant sites not only in W-Anatolia (Ulucak), but also in the Lake District (Hacilar and Bademagaci), as well as for the pottery-bearing site of Barcin in NW-Anatolia (Ozdogan 2015. Fig. 6). Indeed, the term Initial Neolithic does seem to simplify these complicated terminological issues, !50 Preceramic, Aceramic or Early Ceramic| The radiocarbon dated beginning of the Neolithic in the Aegean all the more since in most cases it is not clear whether pottery actually occurred in situ or was intrusive from levels above. However, and notwithstanding the merits of this specific term, the problem itself cannot be solved by the application of any such new term, but only by large-scale excavations, precise observations and by detailed descriptions of the levels under study, as is the case at the ongoing excavations at Bar-cm (Gerritsen et al. 2013), ^ukurigi (Horejs 2012) and Ulucak ((Jilingiroglu et al. 2012). The pertinent question, whether a newly founded Neolithic settlement was either coeval with pottery-bearing Neolithic sites, or instead pre-dated such sites, can be resolved also by its radiocarbon-based absolute age. Old and new radiocarbon dates At the Central Anatolian site of ^atal Hoyuk it is now well-established that pottery came into use shortly after 7000 calBC (Thissen 2007.219). Therefore, if the definition of a Preceramic period, comparable with the Near Eastern PPN and of Anatolian formation, should remain an issue in Aegean prehistory, already from terminological considerations (see above) we may expect this phase to have dates prior to at least 6900 calBC. And indeed, the results of the radiocarbon dating method from the early 1960's seemingly corroborate such a high age: charcoal samples from Knossos had been dated to before and/or around 7000 calBC (Barker, Mackey 1963. 104; Barker et al. 1969.279280). The R combine-value of two dates measured on the same sample (Tab. 1) does in fact fall into the first quarter of the 7th millennium calBC (Fig. 2). But a much more reliable date was obtained on carbonised grain, although with a huge standard deviation. It gives a much younger result, dating into the second quarter of that millennium (c. 6750-6500 calBC), similar to a date said to derive from Fig. 2. Radiocarbon dates from Knossos (Reingruber, Thissen 2005.305). Knossos IX (BM-272: 7570+150 - compare Reingru-ber, Thissen 2005.305). These early dates are followed by a gap of around 1000 years. Interestingly, this interpretation - which is not at all self-evident due to the early 14C-measurement - were confirmed by the investigations in 1997 (Efstratiou et al. 2004). A new set of 14C-samples from Knossos is now being prepared for dating (personal communication Peter Tomkins, 30 May 2015), and we are looking forward to the results, which are crucial for the inter- Fig. 3. Radiocarbon dates from Argissa-Magoula on animal bones (Rein-gruber 2008.157, Tab. 3.4). Fig. 4. Radiocarbon dates from Argissa-Magoula on charcoal (Reingruber 2008.157, Tab. 3.4). 151 Agathe Reingruber pretation of the site. Meanwhile, let us have a closer look at the presently available 14C-data from other sites. Two radiocarbon dates from Nea Nikomedeia with huge standard deviations date to the end of the 8th millennium (Reingruber, Thissen 2005. 306). Also run in the 1960 s, two younger dates from the site with much smaller standard deviations (P-1202 and P-1203A: Vogel, Waterbolk 1967.129) fit well with the sequence presented by Yiouni (1996) that can be dated to around 6150 calBC (compare Reingruber 2008.395-396; Reingruber, Thissen 2009). Therefore, thanks to the AMS-method, it has been established that the settlement of Nea Nikomedeia was founded some 1000 years later, i.e. not to 7200 calBC (as it previously appeared), but to after 6200 calBC. At least five bone samples from Argissa-Magoula were dated at the University of Los Angeles and subsequently published by Reiner Protsch and Rainer Berger (1973-236) (Fig. 3). Two of these samples have dates between 7300 and 6700 calBC (UCLA-1657A, D), one dates to around 5600 calBC (UCLA-1657E), whilst sample UCLA-1657B failed. These dates must be considered as highly doubtful, in particular due to the later 'career' of the prime author of the article, Reiner Protsch: as director of the Frankfurt radiocarbon laboratory he is known to have faked results on human bones, and it is also reported that he was expelled from the University in 2005 (http:// www.spiegel.de/wissenschaft/mensch/ verurteilter-schaedelforscher-der-professor-an-dem-nichts-stimmt-a-631481.html, accessed 11.3.2015). It is open to question whether similar doubts also apply to the UCLA-dates from Argissa. However, 14C-dating of bone-collagen requires complicated chemical processing, and has become reliable only with the advent of the 14C-AMS-technology. Even today, the ultra-filtration method is still in the developmental stage: "Bones are ar- Calibrated date (calBC) Fig. 5. Radiocarbon dates from Sesklo on charcoal (dates from Lawn 1973). guably one of the most highly contaminated samples'' (http://www.radiocarbon.com/ams-dating-bo nes.htm. (http://www.canadianarchaeology.ca/radio carbon/card/bones.htm; accessed 11.3.2015). On the other hand, the charcoal samples were run at the Heidelberg laboratory and also in Groningen (Vogel, Fig. 6. Calibration curve with radiocarbon dates from Knos-sos, Bademasaci, Ulucak (compare Tab. 1). 152 Preceramic, Aceramic or Early Ceramic| The radiocarbon dated beginning of the Neolithic in the Aegean Waterbolk 1967.129; Hauptmann 1971.365), with results that are consistent with a beginning of the site at around 6500 calBC (Fig. 4). The reliability of these dates was confirmed in 1973 (Lawn 1973. 370) by the charcoal-dates from Sesklo that also indicate a starting date around 6500 calBC (Fig. 5). Serious doubts as to the supposed early age (~7000 calBC) of the Preceramic period are therefore advisable, not only due to the generally much younger calibrated 14C-ages, but also because of the high amount of sherds found in the alleged Preceramic levels. A further point that we must address when discussing very early dates around 7000 calBC pertains to the flat shape of the calibration curve between 7000 and 6600 calBC (Tab. 1 and Fig. 6). All dates, even with a narrow spread of BP-values between 7900 and 8000 BP (i.e. 100 14C-yrs), will inevitably have read- Fig. 7. Radiocarbon dates from Franchthi Cave, trench FAN (dates from Perlés et al. 2013.Tab. 2). Fig. 8. Radiocarbon dates from Ulucak VI (dates from Çilingiroglu et al. 2012). ings within this wide range (i.e. 400 calendric years). Since this and any other specific shape of the calibration curve is due to the secular atmospheric 14C-variability, and therefore has a global character, this naturally also applies to the dangers of inadvertently misreading any given 14C-dates. This appears to be the case for the recently published (four) dates on two domesticated seed samples from Franchthi Cave that were described as dating to the "early 7th millennium" (Perles et al. 2013.1001-1015). In actual fact, from Franchthi Cave we do have some dates (excepting short-lived seeds) that are of early 7th millennium age and that indeed fall within the plateau of the calibration curve. However, these dates were measured in charcoal and belong to the Final Me-solithic. Another group of dates is younger and can be placed together with the dates on seeds in the middle of the 7th millennium. They derive from contexts with a very 153 Agathe Reingruber small amount of pottery (that might have been intrusive). When modelling the sequence of radiocarbon dates, it is advisable to take into account only samples from a good stratigraphic context, namely those from trench FAN (Fig. 7): the Neolithic dates on short-lived material are de-monstrably from the middle of the 7th millennium around 6600-6400 calBC, whereas two dates on long-lived material are, not surprisingly, slightly older. Fig. 9. Results on short-lived samples from Ulucak VI. Indeed, this result fits perfectly with the interpretation of the dates from Knossos - and the Franchthi dates agree well with the dates from Ulucak near Izmir. There, on the other side of the Aegean, a new body of l4C-dates was placed by the excavators in the second quarter of the 7th millennium (Qilingi-roglu et al. 2012.153). Especially when considering the very short-lived (annual) and therefore reliable dates on mainly Emmer wheat, phase VI in Ulucak can indeed be dated between 6700 and 6500 calBC (Figs. 8-9). In combination, therefore, what we now recognise is that the new dates from Ulucak and Franchthi Cave are not only part of the problem, but also of the solution. When looking at the Aegean as an interrelated communication area, we can now state that the earliest evidence for food-producing communities appeared in its southern part around 6700-6500 calBC and not at 7000 calBC. However, it was obviously only a very short phase, followed by a gap in dates and finds. The next body of dates start some 250 years later in Ulucak, some 500 years later in Franchthi Cave, and at Knossos, probably even l000 years later (Figs. l0-ll). Discussion and conclusions The relative chronology of the Early Neolithic period in Greece was established half a century ago by Mi-lojcic and Theocharis. Only a few years earlier, the first sites of the Pre-Pottery-Neolithic (PPN) were investigated by Kenyon (Jericho) and Braidwood (Jarmo) in the Near East; an Aceramic site was asserted by Mellaart to have existed in Anatolia (Haci-lar). Both concepts - that of the Preceramic and that of the Aceramic - were introduced into Greek re- search shortly thereafter (Milojcic 1956; Evans 1964). More recently, other and in respect to the question of pottery-production, more neutral names have been proposed: the Initial Neolithic (Perles 2001). But again, there is still a strong affiliation with the Pre-Pottery-Neolithic, as requested for the site of Ulucak, and in our view this needs some more thorough specification. More than fifty years after the important investigations led by the two promoters of Thessalian Neolithic research, Milojcic and Theocharis, a number of rectifications are thus appropriate. It is important to recognise that subsequent excavations in Soufli and Achilleion, as well as the re-evaluation of the documentation in Argissa, did not substantiate the initial interpretation of Milojcic and Theocharis that these sites were founded by Preceramic communities. Not only did the earliest levels in Argissa contain sherds of the Early Ceramic phase, but they were many centuries, if not a millennium, younger than the supposedly coeval sites of the Near-Eastern PPN; this is already indicated by careful evaluation of the radiocarbon dates presented in the 1960's. The initial interpretation of the radiocarbon dates seemingly supported the existence of a Prece-ramic phase in the Aegean before or around 7000 calBC, since pottery appeared in Central Anatolia only later, between 7000 and 6700 calBC. Even in recent studies, this high temporal frame is often taken as representative of the beginning of the Neolithic in the Aegean. However, a closer look at the shape of the tree-ring calibration curve shows that a plateau occurs between 7000 and 6600 calBC, that is a flat portion with many wiggles. This specific shape of the l4C-age calibration curve is the result of the highly variable (and in this case, increasing) pro- !154 Preceramic, Aceramic or Early Ceramic| The radiocarbon dated beginning of the Neolithic in the Aegean duction of 14C in the atmosphere. An increasing number of publications in contemporary archaeological literature focus on readings on the upper end of the plateau, but with no further archaeological foundation. However, when modelled with statistical methods, it appears that the lower end at 6600 calBC rather than the upper end at 7000 calBC is the adequate temporal position for many of the samples under study. New dating methods (AMS), new radiocarbon sequences and new statistical approaches (Bayesian modelling) show that the Early Neolithic started in Thessaly around 6500 calBC with an early pottery phase. Nevertheless, a short episode of possibly Aceramic communities can indeed be tra- Fig. 10. Radiocarbon dates from Franchthi Cave, trench FAN (dates from Jacobsen, Farrand 1987.Tab. 71). No dates from this trench can be attributed to the EN before 6000 calBC, but date P-2093from neighbouring FAS-129 with 6940±90 BP (5970-5730 calBC) places the FCPl-pottery phase of the (local) EN in the period after 6000 calBC, coeval with the Thessalian early MN. Ultimately, the dates of the MNI in Franchthi Cave (5700-5500 calBC) are coeval with the MNII-III in Thessaly (Reingruber 2008.Tab. 7.3). ced at three sites in the Southern Aegean (Franchthi Cave, Knossos and Ulucak), dating between 67006500 calBC, after the introduction of pottery in neighbouring Central and Southwestern Anatolia. With this result, we now face a hitherto unexplored situation: a Preceramic period co-eval with the PPN cannot be verified, nor can the term Aceramic be applied (beyond all doubt) to levels containing sherds that were interpreted as intrusive. At this point, the question must be allowed: why are we (so selectively) looking at the transition from the Meso-lithic to the Neolithic in the Aegean always from the Neolithic point of view and why especially from a pottery Neolithic point of view? As already pointed out at by Kotsakis (2003.217221), with this approach we restrict the important transition from one age to the other, in this case from the 'Mesolithic' to the 'Neolithic', to the occurrence (or absence) of ceramic containers. There are manifold solutions to this problem, but perhaps the most prominent is the widely neglected research on a systematic approach to understanding the Mesolithic population and their cultural legacy. For many decades archaeological research has been engaged in the solidification of colonisation and migration models, which ultimately have their roots in the ever-dominant Ex Oriente Zux-model. This is despite the fact that, nowadays, in contrast to the research situation some 20 years ago, there is strong evidence for widespread Mesolithic communities especially from the Western Aegean (Reingruber 2008.11-84). We have knowledge of such communities, more recently, from the Southern Aegean (Crete and Gav-dos: Kopaka, Matzanas 2009; Strasser et al. 2010) as well as from the Eastern Aegean (Ikaria and Girmeler: Sampson et al. 2012; Takaoglu et 155 Agathe Reingruber al. 2014). It is too early to describe in detail what happened during the transitional decades between 6600 and 6500 calBC, since - for example -new data can be expected from Knossos, Ulucak, ^uku-rigi Hoyuk and Barcin; but even when available, it will be of paramount importance to analyse the new data in context with already available evidence from all regions of the Aegean, and this includes finding a common and meaningful terminology. Although it served as a good tool to explain Neolithisation processes in Thessaly during the 1960's, the so-called Pre-ceramic period in Greece is now best understood as a concept that belongs to the history of research. A precise definition of the relevant terms, including the underlying concepts, will certainly remain a matter of future debates. In order to understand and ultimately resolve the long-standing terminological Fig. 11. Modelled radiocarbon dates from Ulucak VI and Vf. problems, it will be necessary, in particular, to overcome existing local and national viewpoints. More recent publications (e.g., Lichter 2005) have demonstrated that it is possible to look at the Aegean world in its entirety. -ACKNOWLEDGEMENTS- My thanks go to Prof. Dr. Mihael Budja for including this paper in the latest volume of'Neolithic Seminars'. I am indebted to Dr. Bernd Kromer, head of the Heidelberg radiocarbon laboratory, for detailed information concerning the samples submitted by Vladimir Milojcic. Special thanks go to Dr. Laurens Thissen, who provided me with valuable information and new ideas concerning terms and concepts. I also wish to thank the two anonymous reviewers for their improvements on style and comprehensibility. My gratitude includes Prof. Dr. Harald Hauptmann, not only for valuable background information and careful reading of a first draft of this paper, but especially for his constant support. 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